Baker Drivetrain - Who-sells-it.com
Baker Drivetrain - Who-sells-it.com
Baker Drivetrain - Who-sells-it.com
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4-Speed Mission Statement 2<br />
4-Speed Transmission 3<br />
4-Speed Components 5<br />
4-Speed & 6-into-4 Components 6<br />
BAKER Tin Type Primary 7<br />
6-into-4 Transmission 9<br />
Splined Shovel Clutch & Stash Tube 11<br />
Kicker Covers 12<br />
BAKER Online 13<br />
BAKER Apparel and Spectro Oils 14<br />
BAKER’s Unbeatable Warranty:<br />
Let’s face <strong>it</strong>: when you are buying a top-of-the-line transmission, primary, or clutch you expect the best. You want to go the distance w<strong>it</strong>h<br />
years of trouble free service. The BAKER R&D department rigorously validates each and every BAKER <strong>Drivetrain</strong> product to guarantee<br />
customer satisfaction w<strong>it</strong>hin our warranty periods. Because of the work we do in advance and our ongoing qual<strong>it</strong>y control measures, <strong>it</strong><br />
is rare that customers have problems w<strong>it</strong>h our products. That’s why BAKER <strong>Drivetrain</strong> offers one of the best warranties in the business.<br />
Complete transmissions and gearsets carry a 5 year 50,000 mile warranty. Clutches, primaries, and ancillary parts carry a 2 year 20,000<br />
mile warranty.<br />
This is the way <strong>it</strong> should be. We guarantee that when you buy BAKER you buy premium, American-made top of the line innovations - but<br />
we can also guarantee that we are going to stand by that product w<strong>it</strong>h unbeatable service for the long haul.<br />
There’s something to be said these days for an American-made product w<strong>it</strong>h that kind of support. Our factory is just outside of Detro<strong>it</strong>, the<br />
Motor C<strong>it</strong>y, in Michigan. We’re part of the every day grind just like you are. Each BAKER product is built to order when you order <strong>it</strong>, w<strong>it</strong>h<br />
all parts made right here in the USA, by guys who know their sh<strong>it</strong> about gearboxes inside and out.<br />
We are the <strong>Drivetrain</strong> Author<strong>it</strong>y: often im<strong>it</strong>ated (by <strong>com</strong>munist China slopes), never duplicated. We’ve changed the face of the Harley<br />
aftermarket w<strong>it</strong>h our original overdrive 6-speed (OD6), Right Side Drive (RSD), DD6, DD7, N1 drums, FF primaries, reverse k<strong>it</strong>s, and the<br />
KKK clutch. Evolving and improving the iconic Harley Davidson ® motorcycle is our business and we are really friggin’ good at <strong>it</strong>.<br />
What does this give you? Peace of mind. Every time you push that button or climb on that kicker - you know there is a strong, dependable<br />
drivetrain ready to go and that BAKER is right beside you every mile along the way.<br />
Go ahead, give BAKER a call today and talk to one of our Sales/Tech professionals... We can promise you clear, English-speaking, tech<br />
savvy people on our end of the line. Guys who ride and appreciate your bike like you do.<br />
9804 E. Saginaw, Haslett, MI 48840<br />
Phone (517) 339-3835, Fax (517) 339-4590, Toll Free (877) 640-2004<br />
info@BAKERdrivetrain.<strong>com</strong><br />
Prices in this book are subject to change.<br />
We have no relationship w<strong>it</strong>h any of the Asian knock-off artists that copy our products and pollute our great country w<strong>it</strong>h inferior gears and shafts made from steel alloys that would be more<br />
appropriate for the manufacturing of soup cans. Any mention of other manufactures is for reference only. Mr.PotatoHead, JIMS, S&S, RevTech, Big Dog, are all trademarks of their respective<br />
ent<strong>it</strong>ies. BAKER <strong>Drivetrain</strong> and BAKER Inc. are not associated w<strong>it</strong>h the Harley-Davidson Motor Company. Sportster, Buell, Softail, Dyna, Road King, Ultra Classic, FXR, FLT, FLST, FLSTC,<br />
FLSTF, FLSTFI, FLSTCI, FLH, FLTR, FLTRI, FLTCUI, FLHTC, FLHR, FLHRI, FLHRC, FXRS, FXRT, FXR2, FXR3, FXRSP, FXD, FXDL, FXDT, FXDLI, FXDXI, Shovelhead, Panhead,<br />
Knucklehead, Evo, Evolution, Twin Cam, Screamin’ Eagle, FLH, Cruise Drive, Harley, H-D, Harley-Davidson and anything else we may have missed in this disclaimer that Harley-Davidson says<br />
they own unless they are BAKER <strong>Drivetrain</strong> trademarks listed below are all trademarks of the Harley-Davidson Motor Company. BAKER <strong>Drivetrain</strong>, BAKER Six-Speed Overdrive, Function-<br />
Formed, OD6, DD6, DD5, DSSC, Torquebox, 6-into-4, BAKER Billet Series,XL6, BAKER KKK, King Kong Klutch, Klassic Kicker Gears,BAKER 300, F6F, PowerBox, DD7, Street Performance<br />
Clutch, FFP, FFPS,Synchronous Belt Drive, <strong>Drivetrain</strong> Author<strong>it</strong>y and BAKER are trademarks of BAKER Inc., Haslett, Michigan.<br />
1
At Biketoberfest in 1998 we unveiled our big new product, the 6-Speed Overdrive. I was confident that this new<br />
transmission would simultaneously solve world hunger, cure breast cancer, and kill all the deer that wa<strong>it</strong> in the<br />
road to get h<strong>it</strong> by a biker . I was proud. Working in the booth one day, some old crusty coot walked by our booth<br />
and asked me what <strong>it</strong> was. I proudly proclaimed “Sir, that’s our new BAKER 6-Speed Overdrive”. W<strong>it</strong>h a cold<br />
stare he looked at me and said: “ what good is <strong>it</strong> if <strong>it</strong> ain’t got a ratchet top?”. I had no response and felt like<br />
snuffing <strong>it</strong>.<br />
I don’t know that cat’s name but I thought a lot about what he said to me 13 years ago. So this catalog is<br />
dedicated to you, mother fucker. You inspired me. I’ve been studying you and your kind for a number years<br />
and finally got you figured out. You don’t want a new bike. You want an old bike. You wouldn’t take a new bike<br />
if <strong>it</strong> was given to you. Riding a new bike would be akin to riding a Chinese moped down main street in Sturgis<br />
wearing a pink tutu.<br />
This catalog has drivetrain <strong>com</strong>ponents, many of them new, for 4-speed Big Twins (1936-86) and 4-speed<br />
based customs. We’ve been busy. But developing new products for old bikes is tricky because you have to<br />
balance innovation w<strong>it</strong>h her<strong>it</strong>age. Take a look at our new 4-speed. We have a jockey top for <strong>it</strong> now and a N1<br />
drum for foot clutch hand shift junkies. And we didn’t forget about the freaks who own 1984-86 Big Twins; we<br />
now have that special mainshaft length (unique to those bikes) now for our 6-into-4s. Finally, our new Tin Type<br />
Primary (TTP) is the first modern enclosed primary for old bikes that gives a nod to the original tin primaries<br />
from 1936. But the TTP f<strong>it</strong>s today’s alternator/generator hermaphrod<strong>it</strong>e motors, doesn’t leak, and is set up for<br />
dependable and tidy modern starters.<br />
I want to find the guy who cut me down to size 13 years ago and gave me<br />
proper motivation. If you read this, <strong>com</strong>e find me at the next bike show and<br />
identify yourself. I want to shake your hand and thank you.<br />
The <strong>com</strong>ponents we offer for the Harley Davidson® drivetrain aftermarket are now broken up into 4 catalogs: Cruise<br />
Drive era (2007-later), 5-speed era (1984-2006), 4-speed era (1936-86), and Custom/Performance (includes Big Dog<br />
and Sportster/Buell). All four catalogs are available in hard copy or can be downloaded from our webs<strong>it</strong>e. Each catalog<br />
is technically informative, includes some reference pricing, and should provide the information necessary to improve the<br />
performance of your American V-Twin. If, after reading this catalog, you still have questions then give our experienced<br />
tech or sales staff a call at (877) 640-2004 or send an Email to info@BAKERdrivetrain.<strong>com</strong>.<br />
2
- Klassic Kicker Gears <strong>com</strong>e<br />
standard on kicker models.<br />
PN 4-70E84-R-FX-RR-23<br />
MSRP $2695<br />
The introduction of the Knucklehead and the 4-speed in 1936 marked an epoch in the history of American motorcycles.<br />
Many consider the period of 1936-84 the holy grail of Harley fuckin Davidson. To carry on that legacy we developed the<br />
BAKER 4-speed, available w<strong>it</strong>h ratchet top or jockey top lids.<br />
The external arch<strong>it</strong>ecture of our cast (A356-T6) 4-speed transmission case was modeled after factory cases to capture all<br />
the details and character of the original design. But we made many functional upgrades to address short<strong>com</strong>ings of the<br />
original design like leaks, serviceabil<strong>it</strong>y, and durabil<strong>it</strong>y.<br />
The loose rollers on the maindrive gear were replaced w<strong>it</strong>h a radial ball bearing. The bronze bushings on the gearset were<br />
replaced w<strong>it</strong>h caged needle bearings. We added a provision, hidden in the back of the case, for an electronic speedo but<br />
retained the trad<strong>it</strong>ional worm gear speedo provision on the front of the case. The stock Fred Flintstone shift detent was<br />
replaced w<strong>it</strong>h a snot-slick linear ball bearing detent for that smooth ‘snick-pop’ shift qual<strong>it</strong>y you expect from us.<br />
BASE PN Description F<strong>it</strong>ment<br />
4-3664 4-speed, no ear case, 2:1 speedo drive 1936-64 FL & FX<br />
4-6569 4-speed, 2:1 speedo drive 1965-69 FL & FX<br />
4-70E84 4-speed, 1:1 speedo drive 1970-E84 FL & FX<br />
4-7090 4-speed, 1:1 speedo, splined mainshaft 1970-E84 FL & FX,<br />
splined clutch conversion<br />
Each transmission is hand built to order. Use the base part number above an add<br />
suffixes (w<strong>it</strong>h a “-“ before each suffix) to specify the desired configuration:<br />
Case finishes: R=casted, B=wrinkle black, P=polished<br />
Ratchet set up: FL=bottom pull, FX=top pull<br />
Drum option: N1=N1 drum (N-1-2-3-4 shift pattern) for top pull only<br />
Kicker cover: RR=replica raw/casted, RB=replica wrinkle black,<br />
RP=replica polished, FF= function formed polished, BPH=Billet polished<br />
Hydraulic, BPM=billet polished mechanical, BC=billet cable type; see Page 12 for details<br />
Sprocket: 23=23 tooth sprocket, 24=24 tooth sprocket<br />
Notes:<br />
- Default shifter lid is Ratchet top style for all<br />
part numbers. To specify jockey top add<br />
‘JT’ suffix<br />
- 4-3664 <strong>com</strong>es standard w<strong>it</strong>h a ‘no ear’<br />
case for tin primary <strong>com</strong>patibil<strong>it</strong>y. Other<br />
base part numbers <strong>com</strong>e standard w<strong>it</strong>h<br />
‘ear’ cases. To specify ‘no ear’ for other<br />
base part numbers,<br />
add ‘NE’ suffix.<br />
- Neutral sw<strong>it</strong>ch is standard on ratchet and<br />
jockey top. To specify deletion of neutral<br />
sw<strong>it</strong>ch, add ‘NS’ to part number. A low<br />
profile threaded plug is installed in place of<br />
the sw<strong>it</strong>ch.<br />
Alignment track on bottom of ‘no ear’ case (in between the studs) f<strong>it</strong>s tongueand-groove<br />
style into the transmission plate to prevent lateral movement.<br />
Image at top of page shows adjuster boss which prevents fore-aft movement.<br />
3
Shift drum options<br />
We manufacture 3 shift drums for the<br />
4-speed; the FX & FL types w<strong>it</strong>h<br />
conventional shift patterns and N1 style.<br />
Put an FX drum on a FL tranny and stomp<br />
down on the shift lever to upshift. Same<br />
thing if you put a FL drum on a FX tranny.<br />
The N1 drum takes the FX pattern and<br />
relocates neutral down below 1st for a<br />
N-1-2-3-4 pattern as an alternative to the<br />
standard 1-N-2-3-4 pattern. Great for foot<br />
clutch and performance applications. Call<br />
our toll free line for more details.<br />
Gear Ratios:<br />
1st Gear 2.50<br />
2nd Gear 1.70<br />
3rd Gear 1.25<br />
4th Gear 1.00<br />
Gearset<br />
Top pull ratchet top on left (FX) , bottom pull on right (FL)<br />
4-speed gears and shafts are manufactured w<strong>it</strong>h 8620 steel. Vacuum<br />
carburized heat treat gives a case hardness of 58-62 Rockwell ‘C’. Gear tooth<br />
profiles are ground and finished w<strong>it</strong>h diamond tooling after heat treat to correct<br />
the tooth distortion that naturally occurs when you put a chunk of steel in a very<br />
hot furnace. Take off the shifter lid on our 4-speeds and turn the shafts; you<br />
will hear silence because the involute profiles are perfect. The designers of this<br />
transmission back in the 30s would be envious of the improvements we made<br />
to their design w<strong>it</strong>h modern manufacturing processes.<br />
We added lead-in helical ramps on the shift clutches to improve shift qual<strong>it</strong>y.<br />
All bronze bushings were replaced w<strong>it</strong>h modern low friction bearings.<br />
And yes, the BAKER 4-speed use the tried and true 37310-39 cone style<br />
throw-out bearing and 1-piece release rod.<br />
Note lead-in ramps<br />
Shift clutch dog teeth<br />
Maindrive gear has matching lead-in<br />
ramps and needle bearings in bore<br />
Holes drilled in cluster gear feed oil to<br />
the needle bearings<br />
Hidden vent design breathes<br />
through the ratchet cav<strong>it</strong>y<br />
Jockey top <strong>com</strong>patible w<strong>it</strong>h all<br />
base part numbers<br />
4
4-speed <strong>com</strong>ponents<br />
n1 drum<br />
The N1 drum changes the shift pattern<br />
from the standard 1-N-2-3-4 to N-1-2-3-4.<br />
Eliminates the possibil<strong>it</strong>y of catching neutral on a<br />
1-2 upshift. A quadriplegic could find neutral on a hand<br />
shift bike w<strong>it</strong>h the N1 shift pattern. We start w<strong>it</strong>h a solid<br />
chunk of steel, machine in all the features, then remove the<br />
unnecessary material. Two teflon coated bushings are pressed<br />
into the drum axis bore for smooth rotation on shifts.<br />
Installs into existing 1952-79 ratchet tops w<strong>it</strong>h no modification.<br />
Can also be specified, no cost, in a new 4-speed build.<br />
PN 4-155N1-K<br />
MSRP $325<br />
PN 157-4PA<br />
MSRP $25<br />
Speedo hole plug<br />
Ever see oil leaking around the speedo hole on the front case wall of a<br />
4-speed? The standard block-off plate does a half-ass job. So we made<br />
one w<strong>it</strong>h 6061-T6 and an O-ring that works and looks good. Show polished<br />
finish.<br />
4-SPEED & 6-INTO-4 COMPONENTS<br />
We started making 6-into-4 transmissions w<strong>it</strong>h kickers over five years<br />
ago. At the time, we could only purchase some Taiwanese sh<strong>it</strong> kicker<br />
gears in volume because nobody made them in the USA anymore<br />
and that wasn’t gonna get <strong>it</strong>. So we tooled up our own right here in<br />
Michigan, fuck <strong>it</strong>. They <strong>com</strong>e standard on all BAKER 4-speeds,<br />
6-into-4s, and kicker k<strong>it</strong>s.Take a pair of imported sh<strong>it</strong> gears and roll<br />
the teeth together; they roll like a mismatched pair of gears and<br />
are dangerous to have inside your tranny. Klassic Kicker Gears roll<br />
smooth as glass. They’re not cheap, but they are the last set you will<br />
have to buy.<br />
PN 140-64<br />
MSRP $284<br />
5
4-speed & 6-into-4 <strong>com</strong>ponents<br />
Kick arm and pedal<br />
When we first started producing the 6-into-4, we purchased our pedal and kick arm from a supplier but there were two<br />
problems. First, the spindle on the kick pedal was ½” diameter made out of sh<strong>it</strong> metal and occasionally broke. After<br />
receiving many death threats, we designed and tooled our own pedal (876 bronze) and made the larger 5/8” spindle out<br />
of pre-heat treated 4140; problem solved. Next we designed and tooled a straight kick arm out of 304 stainless steel<br />
because the 6-into-4 sticks out an extra 1.6” (<strong>com</strong>pared to 4-speeds) and no elbow is required.<br />
352-64K Bronze pedal w<strong>it</strong>h 5/8” hard chrome plated spindle<br />
351-64K Kick arm, standard length, Stainless steel, polished<br />
353-64K Kick arm, +1” length, Stainless steel, polished<br />
3510-64 Kick arm and pedal assembly, standard length<br />
3511-64 Kick arm and pedal assembly, +1” length<br />
Flush mounted<br />
pivot bolt<br />
PN 3510-64<br />
MSRP $225<br />
6-INTO-4 COMPONENTS<br />
Outside bearing support<br />
For BAKER 6-into-4 w<strong>it</strong>h ear case. Running no motor plate<br />
removes the inner primary mainshaft bearing support. This induces<br />
stress on the mainshaft. The outside bearing support corrects<br />
that short<strong>com</strong>ing.<br />
PN 6-4SSP-A<br />
MSRP $189<br />
33 tooth transmission pulley<br />
Convert a BAKER 6-into-4 from chain drive to belt drive w<strong>it</strong>h this<br />
33 tooth pulley. Made w<strong>it</strong>h 1045 steel and <strong>com</strong>patible w<strong>it</strong>h modern secondary drive belts.<br />
PN 32181S<br />
MSRP $255<br />
6
PN 3101-TTPS-P polished primary MSRP $2195<br />
w<strong>it</strong>h optional PN 3102-TTP-P covers MSRP $495<br />
S&S started some sh<strong>it</strong>. A couple years ago they took the classic Shovel, Pan, and<br />
Knuckle engine designs and re-birthed them w<strong>it</strong>h many modern improvements to<br />
address leaks, durabil<strong>it</strong>y, reliabil<strong>it</strong>y, and performance. So we took the hint and<br />
re-engineered the venerable ratchet top 4-speed w<strong>it</strong>h that classic external<br />
arch<strong>it</strong>ecture and updated <strong>it</strong> w<strong>it</strong>h many modern improvements. And we recently<br />
released the jockey top version. The only piece of the puzzle missing was the<br />
primary. We took the classic 1936-64 tin primary design and re-constructed <strong>it</strong> w<strong>it</strong>h<br />
6061-T6 aluminum to facil<strong>it</strong>ate alternator motor case <strong>com</strong>patibil<strong>it</strong>y, address leaks,<br />
reduce chain noise, and make modern starter integration possible. The result is the<br />
Tin Type Primary (TTP) in kick-only and starter type configurations available w<strong>it</strong>h<br />
blasted or show polished finishes. Starter version is set up for factory 1990-2006<br />
starters. Stock tin derby and inspection covers f<strong>it</strong> but we highly re<strong>com</strong>mend our<br />
sexy 6061-T6 Aluminum TTP covers. The design utilizes our fine tooth modern<br />
L-bracket chain tensioner.<br />
Right side view of a starter version TTP in 1976 FX<br />
Run <strong>it</strong> WET or DRY<br />
Can be run dry w<strong>it</strong>h Shovelhead era clutches and a 1970-E84 4-speed.<br />
Chain oiler feed and return provisions are on back side of inner primary<br />
similar to factory locations. Remove 1/8” NPT plugs and install f<strong>it</strong>tings<br />
(provided).<br />
For a cleaner look w<strong>it</strong>h better clutch function, heat dissipation, and<br />
dependabil<strong>it</strong>y the TTP can be run wet w<strong>it</strong>h primary oil w<strong>it</strong>h the Splined<br />
Shovel clutch ( see page 12) in conjunction w<strong>it</strong>h the BAKER splined<br />
4-speed mainshaft. Splined 4-speed mainshaft available to convert any<br />
existing 1970-E84 transmission or <strong>it</strong> can be specified in a new BAKER<br />
4-speed build. Splined Shovel clutch is highly re<strong>com</strong>mended for 93+ inch<br />
engines to avoid trouble down the road.<br />
7<br />
1/8” NPT f<strong>it</strong>tings installed on the feed and return<br />
provisions to run dry clutch set up
TTP is <strong>com</strong>patible w<strong>it</strong>h:<br />
- 1970-E84 Big Twins and custom 4-speed builds<br />
- 1970-79 ratchet top 4-speeds (top or bottom pull)<br />
- 1980-E84 turtle top 4-speeds (non starter TTP version only)<br />
- Jockey top 4-Speeds<br />
- Alternator style motor cases<br />
- Shovelhead clutches and BAKER splined clutch<br />
(see page 11)<br />
- 1990-2006 1.4kw H-D starters w<strong>it</strong>h ¼-20 or 10-32 shaft<br />
- Trad<strong>it</strong>ional tin derby and inspection covers or BAKER TTP<br />
covers<br />
- 1955-64 splined non-<strong>com</strong>pensator motor sprockets<br />
- Stock 40007-36B primary chains<br />
Primary drive configuration options:<br />
- 24 tooth motor sprocket, 37 tooth clutch sprocket, and stock 82<br />
p<strong>it</strong>ch primary chain (PN 40007-36B), for a 1.54 primary ratio.<br />
24 tooth motor sprocket is maximum size that f<strong>it</strong>s w<strong>it</strong>hin the TTP<br />
envelope<br />
- 22 tooth motor sprocket, 35 tooth clutch sprocket, and 80 p<strong>it</strong>ch<br />
primary chain (available through BAKER) for a 1.59 primary<br />
reduction. 35 tooth clutch sprocket available w<strong>it</strong>h BAKER splined<br />
Shovel clutch, see page 11.<br />
- 23 tooth motor sprocket, 38 tooth clutch sprocket, and<br />
stock 82 p<strong>it</strong>ch primary chain (PN 40007-36B) for a 1.65<br />
reduction. 38 tooth clutch sprocket available w<strong>it</strong>h<br />
BAKER splined Shovel clutch, see page 11.<br />
1976 FX w<strong>it</strong>h PN 3101-TTPS-R TTP<br />
and PN 3102-TTTP-R Derby and<br />
inspection covers (MSRP $395)<br />
(MSRP $1995)<br />
Part number and descriptions for 1970-E84<br />
applications and custom 4-speed:<br />
Pn<br />
3100-TTP-R<br />
3100-TTP-P<br />
3101-TTPS-R<br />
3101-TTPS-P<br />
3102-TTP-R<br />
3102-TTP-P<br />
Description<br />
TTP w<strong>it</strong>h hardware*, kick only, media blasted<br />
finish<br />
TTP w<strong>it</strong>h hardware*, kick only, show polished<br />
TTP w<strong>it</strong>h hardware*, starter version, media<br />
blasted finish<br />
TTP w<strong>it</strong>h hardware*, starter version, show<br />
polished<br />
TTP derby and inspection covers w<strong>it</strong>h<br />
hardware^, media blasted finish<br />
TTP derby and inspection covers w<strong>it</strong>h<br />
hardware^, show polished<br />
TTP starter version w<strong>it</strong>h 22 tooth motor sprocket and<br />
35 tooth clutch sprocket. Note chain drip oiler f<strong>it</strong>ting<br />
*Hardware includes motor sprocket nut, chain adjuster and related<br />
hardware, starter pinion and related hardware (starter version only),<br />
slotted housing screws, NPT f<strong>it</strong>tings, and housing gasket<br />
^ Hardware includes slotted cover screws and gaskets<br />
Installation note<br />
For TTP starter applications, the external clutch lever must be fabricated or purchased<br />
from Fabricator Kevin. Cable type kicker cover (see page 12) can be used w<strong>it</strong>h no<br />
fabrication required.<br />
8
MSRP<br />
starting at<br />
$3350<br />
Years ago we came out w<strong>it</strong>h the 6-into-4 for Shovelheads. Sales of<br />
these transmissions have been a <strong>com</strong>plete shocker and the message<br />
is loud and clear: People love their Shovelheads and they ride the piss<br />
out of them.<br />
Our original 6-into-4 transmission is a direct replacement for the 1970-<br />
Early 1984 4-speed. This year we have mainshaft options that allow<br />
f<strong>it</strong>ment into wet (diaphragm) clutch model Shovels and 4 speed Evo<br />
models that require a longer mainshaft and shorter ones for Pan and<br />
Knuckle. Available w<strong>it</strong>h different kicker covers, see page12. 4-speeds<br />
have a 1:1 forth gear. 6-into4s have a 1:1 fifth gear and a .86:1 sixth<br />
gear; good for a 500 RPM reduction on the highway.<br />
6-INTO-4 FEATURES:<br />
- BAKER Klassic Kicker gears, stainless steel kick arm, and bronze pedal standard<br />
- Case available w<strong>it</strong>h or w<strong>it</strong>hout primary flange; raw, wrinkle black, or polished<br />
- 23 tooth sprocket standard. Optional 24 tooth and 33 tooth pulley<br />
- Forged top cover available w<strong>it</strong>h or w<strong>it</strong>hout neutral sw<strong>it</strong>ch<br />
- Speed sensor provision on right rear of case<br />
- N1 drum, no cost option, for N-1-2-3-4-5-6 shift pattern<br />
Gear ratio<br />
1st 3,24, 2.94, 2.82<br />
2nd 2.21, 2.08<br />
3rd 1.60<br />
4th 1.23<br />
5th 1.00<br />
6th 0.86, 0.80<br />
All 6 into 4 <strong>com</strong>plete transmissions are backed by an unbeatable BAKER 5 year, 50,000 mile warranty<br />
- try that w<strong>it</strong>h your old 4-Speed!<br />
3 mainshaft types available for 6-into-4:<br />
1984-86 Diaphragm type wet clutch<br />
1970-E84 Shovelhead mainshaft<br />
9<br />
1936-64 Knuckle/Pan mainshaft
Base PN Description F<strong>it</strong>ment/Application<br />
6402 6-into-4, Close ratio 2.94 1st gear 1936-86 FL & FX; good all around gear ratio<br />
6412 6-into-4, Stock 3.24 1st gear 1936-86 FL & FX; for heavy GVW applications<br />
64212 6-into-4, R-Ratio 2.82 1st & 2.08 2nd 1936-86 FL & FX; for light hot rods<br />
Note:<br />
Deep overdrive 6th gear (0.80) available as no-cost option, consult BAKER tech line<br />
Each transmission is hand built to order. Use the base part number above and add suffixes<br />
(w<strong>it</strong>h a “-“ before each suffix) to specify the desired configuration:<br />
Case finishes: R=raw/casted, B=wrinkle black, P=polished<br />
Drum option: N1=N1 drum (N-1-2-3-4-5-6 shift pattern)<br />
Case style: Standard case has ‘4-stud ears‘ for primary, specify no ear case by adding NE suffix (1936 style)<br />
Kicker cover: Standard chrome kicker cover shown in image on page 9. Optional kicker cover suffixes:<br />
FF= function formed polished, BPH=Billet polished Hydraulic, BPM=billet polished mechanical,<br />
BC=billet cable type, E=electric start; see Page 12 for details<br />
Mainshaft length: 1970-E84 mainshaft standard, optional lengths: -36 for 1936-64 mainshaft, -84 for 1984-86<br />
23 Tooth sprocket standard. Specify optional 24 Tooth sprocket by adding -24 suffix or -33 for pulley<br />
PN 6402P-FF shown MSRP $3,895<br />
w<strong>it</strong>h optional bearing support<br />
PN 6-4SSP-A MSRP $189<br />
Installation notes:<br />
- 6-into-4 has 2 more gears than a 4-speed and sticks out 1.6” more. Rear exhaust pipe, oil<br />
tank brackets, and starter brackets may have to be modified for f<strong>it</strong>ment.<br />
- 6-into-4 case does not have speedometer cable provision on front of case<br />
- Electric speed sensor provision in case accepts stock 1994-up speed sensors.<br />
- Some 1970s inner primaries may require modification for sprocket nut clearance.<br />
- Optional 33 tooth pulley (see page 6) adapts 6-into-4 to factory rear belt drive.<br />
N1 drum<br />
Mechanical Kicker<br />
Cover, PN 478-56MP<br />
Hydraulic Kicker Cover,<br />
PN 479-56P<br />
Klassic Kicker Gears<br />
PN 140-64<br />
Klassic Kicker<br />
Gears standard on<br />
6-into-4<br />
10
splined Shovel clutch retrof<strong>it</strong>/<br />
upgrade for 1970-E84 Big Twin<br />
You know the sad story. The torque on the clutch nut backs<br />
off a hair and the key on the transmission mainshaft shears<br />
off. This usually happens at the most inconvenient time and<br />
place. And the probabil<strong>it</strong>y of this sad story playing out is<br />
greater w<strong>it</strong>h performance applications.<br />
The splined Shovel clutch k<strong>it</strong> retrof<strong>it</strong>s and upgrades the<br />
stock tapered mainshaft and clutch to a modern 18 tooth<br />
spline configuration. K<strong>it</strong> includes a fully assembled clutch<br />
and splined 4-speed mainshaft to retrof<strong>it</strong> stock 1970-E84<br />
Big Twins.<br />
The clutch is based off of our 9-plate clutch used on 1990-up<br />
applications and f<strong>it</strong>s in the stock primary housing and TTP.<br />
We offer 35, 36, 37, and 38 tooth clutch sprockets w<strong>it</strong>h our<br />
clutches to dial in your overall gear ratio. 18 tooth mainshaft<br />
installs into the stock 4-speed transmission just like stock.<br />
Pn<br />
Description<br />
9P400* Splined Shovel clutch assembly<br />
9P401* Splined Shovel clutch k<strong>it</strong>, includes<br />
Clutch and Splined 4-speed mainshaft<br />
Shaft available separately<br />
PN MS-4-SPLINE<br />
MSRP $385<br />
PN 9P401-37-S clutch<br />
and mainshaft k<strong>it</strong><br />
MSRP $995<br />
*- Specify clutch sprocket by adding a “-35”, “-36”,“-37” & “-38” suffix to part number<br />
- “-K”, for kick only, or “-S” for starter ring gear version<br />
Stash tube for Big Twins<br />
w<strong>it</strong>h alternator left side case and generator right side case<br />
The term ‘crank’ was coined because some road dogs used to put<br />
their crystal meth in the crankcases of their engines to hide <strong>it</strong> from<br />
Johnny Law. But crank melts in the heat, and oily crank doesn’t<br />
sound too tasty. So we developed a stash tube to keep registration<br />
papers dry and to keep the stash cool and oil-free.<br />
Made w<strong>it</strong>h 6061-T6 aluminum w<strong>it</strong>h a screw-on top and a .200”<br />
thick O-ring for a water-tight seal. Internal diameter is 2.5” and is<br />
4” deep.<br />
PN ST-150B, installed on Panhead w<strong>it</strong>h<br />
alternator left side case<br />
11<br />
PN ST-155R<br />
MSRP $199<br />
For Knuckle, Pan, and Shovel w<strong>it</strong>h<br />
alternator left side and generator<br />
right side case:<br />
Pn<br />
ST-150B<br />
ST-155R<br />
MSRP $199<br />
Description<br />
Stash tube, cat black, highlighted fins<br />
Stash tube, media blasted, highlighted fins
Kick starting a 74 inch motor w<strong>it</strong>h 7.5:1 <strong>com</strong>pression ratio is one thing; kicking a healthy 93 inch motor is qu<strong>it</strong>e another. Our<br />
kicker covers are designed w<strong>it</strong>h structural overkill to handle the bending forces imposed on that kicker shaft when the weight<br />
of your body on that kick pedal has a fist fight w<strong>it</strong>h the gods of spark and <strong>com</strong>bustion .<br />
Mechanical - inside<br />
PN 478-56MP-K<br />
Mechanical version Features<br />
- Stainless steel release shaft support w<strong>it</strong>h O-ring<br />
- Includes release shaft and finger<br />
- Compatible w<strong>it</strong>h 37310-39 type throwout<br />
bearing (not included)<br />
Hydraulic - inside<br />
PN: 478-56HP-K<br />
Hydraulic version Features<br />
- 1.5” actuator piston included<br />
- 11/16” master cylinder re<strong>com</strong>mended<br />
- Includes BAKER Heavy Duty Throw out bearing<br />
cable type - inside<br />
PN 478-56cp-k<br />
Cable type features<br />
- Ball and ramp actuator; uses 1987-2006<br />
Big Twin clutch cables<br />
- Eliminates external linkages. Great for bikes<br />
w<strong>it</strong>h lim<strong>it</strong>ed clearance above the<br />
transmission and around the oil tank<br />
ff hydraulic - inside<br />
PN: 479-56P-K<br />
Function Formed Hydraulic features<br />
-Structurally gusseted FF design w<strong>it</strong>h<br />
vulgar display of mechanical purpose<br />
-Comes w<strong>it</strong>h 1.5” actuator piston;<br />
<strong>com</strong>patible w<strong>it</strong>h 11/16 master cylinders<br />
BAKER kicker cover Features (all)<br />
MSRP $695<br />
- Kicker cover carved from 6061-T6 aluminum for strength<br />
- 1-piece bronze kicker shaft bushing w<strong>it</strong>h outer seal<br />
- Smooth and strong BAKER Klassic Kicker Gears, includes<br />
mainshaft gear and ratchet hub<br />
- Includes kicker shaft, kicker gear and return spring<br />
assembled as shown<br />
- Zero leak fluid level plug<br />
- Concentric dowels around 2 of the stud pos<strong>it</strong>ions; used on<br />
6-into-4 door and BAKER 4-Speed case for pos<strong>it</strong>ive kicker<br />
cover location<br />
- Show polished finish<br />
12
WE’VE GOT SOCIAL NETWORKING SKILLS YO!<br />
BAKER is hip to the new way that our customers are learning and<br />
<strong>com</strong>municating - We have been paying attention the past few years to the<br />
growing number of bikers who spend their time online. We have also noticed<br />
that information passes quickly, and freely online.<br />
W<strong>it</strong>h that in mind: we have also launched a BAKER MySpace, BAKER<br />
Facebook and you can even catch up to the minute BAKER sales and<br />
updates on your phone by following us on Tw<strong>it</strong>ter.<br />
So look us up on your favor<strong>it</strong>e social networking s<strong>it</strong>e to keep up w<strong>it</strong>h the<br />
latest happenings at BAKER. You will hear about what sales are hot, what<br />
deals we’re passing to our dealers, and more... we can’t gaurantee that you<br />
won’t get a random dirty joke or bathroom update. You’ve been forewarned.<br />
LOG ON AND FOLLOW US!<br />
BAKER ONLINE STORE:<br />
BAKER product offerings 10 years ago were pretty damn simple. We offered 8 different part numbers and that was <strong>it</strong>. Our<br />
printed catalog easily captured and conveyed our product line. American motorcycle enthusiasts got their information by<br />
calling our toll free number, reading magazines, and attending bar stool seminars. Back then, nobody in our world relied<br />
on, or trusted, the internet to obtain n<strong>it</strong>ty-gr<strong>it</strong>ty details on neat new stuff for their scoot. But today, thanks to pornography,<br />
bikers are as web-savvy as the rest of the population. And <strong>it</strong>’s a good thing because BAKER product offerings these days<br />
number in the thousands and many configurational options are available for any one application. In 2009 we launched the<br />
new BAKER E-Commerce s<strong>it</strong>e to simplify the task of product selection for our dealers (password required) and the public.<br />
Look for the E-Commerce button prominently displayed on our home page. It will guide you interactively, through the<br />
maize of options, so you end up w<strong>it</strong>h the right configuration for your application.<br />
The ECommerce store has proved very quickly to be an excellent tool for our dealers and retail customers alike. For<br />
<strong>com</strong>plete updates, log on, and make sure we have your email address in our database! It’s the best way not to miss out!<br />
13
6-speed BAKER brand made in the usa BAKER logo<br />
MSRP $20<br />
twisted fuck king of gears vintage BAKER<br />
dont forget your annual<br />
official BAKER calendar<br />
poster!<br />
BAKER has a full line of apparel including t-shirts, hats, stickers, tin signs<br />
and even shop jackets and shirts for men and women. Check out our<br />
Official BAKER Online Store for availabil<strong>it</strong>y and the latest merchandise<br />
out there! What better way to brag about your BAKER?<br />
There Is More To A Transmission<br />
Than Just Metal<br />
As a <strong>com</strong>pany tenaciously focused on any improvement to the<br />
American Big Twin drivetrain, BAKER <strong>Drivetrain</strong> recognizes the<br />
fluid in the transmission is key in the performance and life of a<br />
transmission. It is a mechanical part of <strong>it</strong> as much as the gears,<br />
case, bearings, etc…so <strong>it</strong> must be of qual<strong>it</strong>y. The Spectro<br />
Platinum Heavy Duty 6-Speed Transmission Lubricant meets<br />
our BAKER <strong>Drivetrain</strong> qual<strong>it</strong>y standards for re<strong>com</strong>mended<br />
transmission oil. Our standard for re<strong>com</strong>mending oil is that <strong>it</strong><br />
must have optimized properties tailored only for <strong>com</strong>ponents<br />
in a V-Twin motorcycle transmission and <strong>it</strong> must exceed all<br />
others in excellence – like our own products do. Cheaper oils<br />
cannot provide all these qual<strong>it</strong>ies.Spectro’s 6-Speed formula<br />
base is synthetic group 4 base stock which is the highest rating<br />
for a synthetic lubricant. It is pure w<strong>it</strong>h absolutely no petroleum<br />
product blended into <strong>it</strong>.<br />
PN BD-75W140<br />
MSRP $14<br />
14
Some say the world will end in December 2012. After the apocalypse, owners of Knuckle, Pan, and<br />
Shovelheads will thrive because that’s what they do. They are survivors. They work on their own iron and they<br />
know their bike better than they know their wife, ex-wives, and kids. They have the real world experience to<br />
know the difference between a good part and a bad one. We make drivetrain <strong>com</strong>ponents for those who know<br />
the difference between sh<strong>it</strong>ty parts and qual<strong>it</strong>y American craftsmanship; that’s the difference between<br />
surviving or not.