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MOTORCYCLE
TRANSMISSIONS
Gear
Sets at bottom of page.
Transmission Parts - - Drivetrain
Index
Please
note: When comparing prices to others, please be aware
that some companies do offer lower pricing by buying engines or
trannys unassembled, and then put them together themselves (thus,
have no factory warrantee). All parts and/or engine, tranny, etc.,
sold at STCC are 100% factory assembled and warranteed.
PLEASE
NOTE: Transmissions are not returnable except for manufacturer defects. TERMS
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6 SPEED TRANSMISSION FOR 4 SPEED FRAME -Baker Drivetrain
True overdrive provides a 500 RPM drop in 6th gear for reduced vibration
and improved fuel mileage.
Gear ratios are first 2.94, second 2.21, third 1.60, fourth 1.23, fifth
1.00 and sixth gear .86:1.
Available in Polished or Raw transmission cases by S&S Cycles.
Have chrome plated top covers, kickstart covers and kick arms.
Includes a solid brass and solid rubber kickstart pedal.
All gears are finish ground on diamond coated tooling after heat treating
to produce a super fine surface for holding exact tolerances and eliminating
gear
mesh noise.
Kick starter gears are heavy duty for years of service.
Back-cut gear dogs with lead-in ramps on the gear pockets provide smooth
shifting with positive engagement.
Includes 23 tooth drive sprocket.
Provision for electronic speedometer sending unit.
Includes instructions and a manufacturer's statement of origin.
Baker Drivetrain: Made
in the U.S.A.
Note: Due to the extended length of the kick start side the rear exhaust
pipe, oil tank and electric starter mounting brackets may have to be
modified. Some inner primary covers require modification to clear the
sprocket nut. Case clearancing may be necessary for some starter motors.
Part #: M70310 - Polished Case Transmission,
Fits Big Twin 4 speed frame with 1970/Early 1984 primary drive ...
$3,885.80
Part #: M70311 - Raw (as-cast natural) Cast Transmission,
Fits Big Twin 4 speed frame with 1970/Early 1984 primary drive ...
$3,885.80
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5
speed or 6 speed
Chrome
and Polished
Made
in U.S.A.
ALL
BAKER TRANSMISSIONS NOW HAVE A 5 YEAR/50,000 MILE WARRANTY!
More
BAKER at bottom of page.
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BAKER
5 & 6 SPEED TRANSMISSION ASSEMBLIES FOR SOFTAIL
CHROME AND POLISHED
All gears are finish ground on diamond coated tooling after heat treating
to produce a super fine surface for holding exact tolerances and eliminating
gear mesh noise. All gear dogs have lead-in ramps for positive gear engagements.
To eliminate a weak area normally associated with the 5 speed transmission,
Baker has incorporated the countershaft and the countershaft's top gear
into one piece. Redundant shift drum detents (roller type & plunger
type for positive neutral finding). Anti-Overshift inner transmission
shift linkage with improved shape return spring for dependability. Polished
case with chrome plated top cover and side cover.
Lightened steel pulley with 32 teeth. 2.94:1 close ratio first gear adds
approximately 5 miles per hour of usable first gear.
The 6 speed has a .86:1 ratio top gear and will reduce RPM by approximately
475. These transmissions include a single wire type neutral switch designed
for 1984/1997 Softail models and can be used with an electronic speedometer
sensor.
The 5 speed version is best suited for stock through moderately modified
engines.
The 6 speed version is best suited for large displacement engines.
A Manufacturer's Statement of Origin is included. Made in the U.S.A.
5
Speed Transmission, Fits Softail Models 1990/1999 - Part#:M70330
... $2205.85
6
Speed Transmission, Fits Softail Models 1990/1999 - Part#:M70331
... $3417.00 including free shipping*
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RIGHT
SIDE DRIVE 6 SPEED WITH PRIMARY DRIVE FOR CUSTOM USE from Baker Drivetrain
With
D.S.S.C. = Drop Starter Slam Clutch

Designed
for right side drive Big Twin frames that have centered
in the frame Engine.


CHAIN
DRIVE |
RIGHT
SIDE DRIVE 6 SPEED WITH PRIMARY DRIVE FOR CUSTOM USE - Baker Drivetrain
Designed
for right side drive Big Twin frames that have centered in the frame
Engine.
Mounts and a 1/2" left offset Transmission Mount (a Primary Spacer
will not be required).
Can be used with a 240/250mm Tire and still fit a 1 1/2" wide
Rear Belt. A 280/300mm Tire is possible with a 530 O Ring Chain and
Offset
Transmission Sprocket.
The Starter Mount location has been dropped permitting the seat height
to be lowered up to 2 1/2".
By slamming the Clutch Assembly inward 2.3", the open space once
occupied by the left side drive Transmission Pulley is now eliminated.
All gears are manufactured by Andrews Products Inc. and are finish ground
after heat treating on a diamond coated grinder providing superior fit
with minimal gear noise.
Back-cut Gear Dogs with lead-in ramps on the gear pockets provide smooth
shifting with positive engagement.
Steel Shift Forks with hard chrome plating feature a cross section that
is 3 times thicker than stock.
For improved acceleration, the 32 tooth hard anodized aluminum Pulley
weighs a mere 2 pounds (OEM weighs 5.2 pounds).
2.94:1 Close Ratio 1st gear and .86:1 ratio 6th gear.
The 28 tooth solid mount Engine Sprocket combined with the 43 tooth
Clutch Basket produces a Primary Drive Ratio of 1.54:1 (same as stock)
and includes
the required 88 pitch Primary Chain & Adjuster.
For maximum torque transfer, the Clutch Pack features 9 Kevlar® Friction
Plates.
Includes a single pole type Neutral Switch and is compatible with the
OE type electronic Speedometer Sensor (a sensor block off plate is included).
All parts are CNC machined from 6061-T6 billet aluminum.
Requires 1990/1993 Starter Motor (not included).
Includes Manufacturer's Statement of Origin (shipped separately). Made
in U.S.A.
Polished - Part#:M75500 ... $7758.63
Chrome -
Part#:M75501 ...$8247.69
ALL
BAKER TRANSMISSIONS NOW HAVE A 5 YEAR/50,000 MILE WARRANTY! |
MORE TRANNYS BELOW:
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A
NOTE ON BAKER TRANSMISSIONS: We
carry the entire line of Baker Transmissions. They are built
at time of order, take approx. 2 weeks, and there are many gear choices. Please
call and chat with our tech if you need something special. We
recommend that you buy a Baker Transmission for engines 113" and
larger... also, if you are a "hard use" kind of rider.CONTACT |

Cast
Case

Polished
Case |
POWERHOUSE
6 SPEED TRANSMISSION ASSEMBLY FOR SOFTAIL 1990/1999
If you have
ever been cruising on the highway and tried to upshift into top gear just
to find out your transmission is already in fifth gear, then that is all
the proof you should require that you need a 6 speed transmission. Not
only will this complete transmission assembly reduce vibration at highway
speed, it will also improve fuel mileage. At 75 miles per hour, the .86:1
overdrive ratio will produce a 475 RPM reduction when shifting from fifth
gear. A 2.94:1 close ratio first gear will add approximately 5 MPH of
useable first gear. The second, third, and fourth gear ratios remain the
same as OE. Fits Softail models 1990/1999.
Part#:M70313 - Cast Case, Fits Softail models 1990/1999...
$1283.75
Part#:M70315
- Polished Case, Fits Softail models 1990/1999 ...
$1373.75
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Cast
Case

Polished
Case |
POWER
HOUSE COMPLETE
5 SPEED TRANSMISSION FOR SOFTAIL 1990/1999.
- Available
with "as cast" case finish or polished case finish.
- Features chrome
plated top cover, side cover, shifter rod lever and speedometer sensor
block off plate.
- Includes 32 tooth
steel pulley.
- Gear ratios are
the same as OE.
- Just add oil and
hook up the clutch cable.
- 12 month Manufacturer's
Limited Warranty.
- Includes Manufacturer's
Statement of Origin.
- Fits Softail 1990/1999.
After extensive on-bike high mileage testing, we are proud to offer this
complete POWER HOUSE 5 Speed Transmission. Simply add oil and install
your clutch cable. This transmission features a chrome plated top cover,
side cover, shifter rod lever and speedometer sensor block off plate.
It includes a steel 32 tooth pulley, allen head cover hardware and all
the required mounting stud and alignment pins installed. All gear ratios
are the same as OE. Includes manufacturer's Statement of Origin and a
Manufacturers 6 month limited warranty.
"As
Cast" case. Fits Softail 1990/1999.
Part#:M70307 -
Power
House Cast Case 5 speed transmission ...
$1162.50
Polished
Case. Fits Softail 1990/1999.
Part # :M70314 -
Power House Polished 5 speed transmission ... $1230.00
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For
wider tires and bigger engines.

As Cast or Polished Case

Shown
installed on Softail Style RSD frame.
Fits
Custom Big Twin Right Side Drive Frames.
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POWERHOUSE
RIGHT SIDE DRIVE
Powerhouse
5 speed and 6 speed Right Side Drive Transmissions
The Powerhouse Right
Side Drive transmissions were developed for wide size tire (250 series)
and are best suited for high performance engines. Hydraulic and clutch
type side cover. Specially designed cam for smooth shifting with bronze
shifting fork.
The
Right Side Drive (RSD) transmission, when mounted in a custom RSD frame
will allow the
use of a super wide rear tire without offsetting the engine. Available
in your choice of a 5 or 6 speed with an "as cast" or polished
case. Transmissions include a chrome plated top cover, shift rod lever
and hydraulic clutch actuator cover. The hydraulic clutch actuator is
designed to be used with a 11/16" bore master cylinder and requires
a 10mm banjo bolt. The 5 speed version includes standard ratio gears and
the 6 speed includes standard ratio gears with a 86:1 ratio 6th gear.
For maximum strength all gear are the same width as OEM gears. The 32
tooth pulley will accept a 1 1/2" wide drive belt. The splined main
shaft is designed for a 1990/Later style clutch hub. A neutral switch
and speedometer sensor block off plate are included. Smooth shifting
is
accomplished by bronze shift forks and a roller type shift drum detent
arm. Includes a 24 month Manufacturer's Warranty and Manufacturer's Statement
of Origin (MSO).
Polished
Case, Right Side Drive
- M70318
- 5 Speed RSD, stock ratio gears ... $1657.50
- M70319
- 6 Speed RSD, .86:overdrive ... $2047.50
Cast
Finish Case, Right Side Drive
- M70320
- 5 Speed RSD, stock ratio gears ... $1560.00
- M70321
- 6 Speed RSD, .86:overdrive ... $1732.13
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Big
Twin 4 speed 1952/Early 1979

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COMPLETE
RATCHET TOP ASSEMBLY FOR BIG TWIN 4 SPEED - V-FACTOR
High quality replacement ratchet top with hardware.
Replace the old worn out unit on your transmission with this fresh show piece.
No more searching for all the small internal pieces.
This unit saves you time and money.
Part #: M70550 - Chrome Plated Motorcycle Transmission Assembly, Fits Big Twin
4 speed 1952/Early 1979 ( Replaces HD# 34799-65) ... $343.39
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Transmission
Parts such as Gear Sets, Builder's Kits, End Covers, Top Covers,
Shifter Drum Kit, Rebuild kits, Cases, etc. can be found on TRANSMISSION
PARTS page.
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FLAT
RATE SHIPPING APPLIES IN CONTINTENTAL
48 UNITED STATES ONLY. AK, HI and APO/FPO will have additional
shipping fees. We ship mainly within the U.S.A. and
to APO/FPO (military addresses; weight and size restrictions apply.).
We also ship to Australia. We do not
accept foreign credit cards. Please see our CONTACT page
for more information.
Prefer
to call in your order to Steel Thunder? Call 603-237-8200.
FREQUENTLY
ASKED QUESTIONS
Please
note that all prices are subject to change.
***
Steel
Thunder Custom Cycles
531
Bungy Road
Columbia,
NH 03576
With
God All Things are Possible!
Copyright
2002-2013 Steel Thunder Custom Cycles©
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