Steel Thunder Custom Cycles Motorcycle Parts store for Harley-Davidson and custom bikes.

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Steel Thunder Custom Cycles
3418 Teagues Road
Marshfield, MO 65706
417-468-2326

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 MOTORCYCLE TRANSMISSIONS

FREE SHIPPING!

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.

Baker Transmission for Softail, 5 speed or 6 speed.

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.

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.

5 Speed Transmission, Fits Softail Models 1990/1999 - Part#:M70330 ... $1885.64 including free shipping*

6 Speed Transmission, Fits Softail Models 1990/1999 - Part#:M70331 ... $2925.09 including free shipping*

 

RIGHT SIDE DRIVE 6 SPEED WITH PRIMARY DRIVE FOR CUSTOM USE from Baker Drivetrain

With D.S.S.C. = Drop Starter Slam Clutch

Right Side Drive 6 speed with Primary Drive for Custom Use.

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

Primary drive and tranny in one, from Baker Drivetrain.

Installs into Right Side Drive frame nice and neat!

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 ... $7195.28 including free shipping*

Chrome - Part#:M75501 ...$7645.82 including free shipping*

ALL BAKER TRANSMISSIONS NOW HAVE A 5 YEAR/50,000 MILE WARRANTY!

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. Or, if you are a "hard use" kind of rider.

PLEASE CALL TO SPEC OUT YOUR ORDER. OUR TOLL-FREE NUMBER IS: 1-866-889-7828, 9-5 CST, M-F.

Powerhouse 6 Speed Transmission assembly for Softail 1990/99, cast case.

Cast Case

Powerhouse 6 Speed Transmission assembly for Softail 1990/99, polished 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... $1,232.96 including free shipping*

Part#:M70315 - Polished Case, Fits Softail models 1990/1999 ... $1,295.96 including free shipping!

Powerhouse Complete 5 speed tranny for Softail 1990/99, cast case

Cast Case

Powerhouse Complete 5 speed tranny for Softail 1990/99, polished 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 ... $1079.96 including free shipping*

Polished Case. Fits Softail 1990/1999.
Part # :M70314 -
Power House Polished 5 speed transmission ... $1142.96 including free shipping*

For wider tires and bigger engines.

Powerhouse Right Side Drive Transmission. 5 speed or 6 speed, raw or polished.

As Cast or Polished Case

 

Powerhouse tranny shown installed on softail style RSD frame.

Shown installed on Softail Style RSD frame.

Fits Custom Big Twin Right Side Drive Frames.

 

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 ... $1529.96 including free shipping*
  • M70319 - 6 Speed RSD, .86:overdrive ... $1889.96 including free shipping*

Cast Finish Case, Right Side Drive

  • M70320 - 5 Speed RSD, stock ratio gears ... $1439.96 including free shipping*
  • M70321 - 6 Speed RSD, .86:overdrive ... $1616.67 including free shipping*

For 6-Speed Transmissions.

re-calibration module for electronic speedometers. Dakota digital speed generator interface.

RE-CALIBRATION MODULE FOR ELECTRONIC SPEEDOMETER

Necessary to correct the OEM speedometer read-out when the final drive ratio or rear tire diameter has been altered.
Can also be used to correct non-ratio modified models with the OEM electronic speedometer that read wrong straight from the factory.
Push button adjustments make it easy to set.
Plugs directly into OEM wiring harness.
Includes calibration instructions.

Fits all models with electronic speedometer 1996/Later. Corrects speedometer readout.
#CC310669 ... $129.99 including shipping*

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.

Gear Sets for Sportster & Sportster performance items (including Tranny) HERE.

*FREE SHIPPING APPLIES IN CONTINTENTAL 48 UNITED STATES ONLY. AK, HI and APO/FPO will have additional shipping fees. We ship only within the U.S.A. and to APO/FPO (military addresses; weight and size restrictions apply.). We do not accept foreign credit cards. Sorry, we do not ship to Puerto Rico.

Prefer to call in your order to Steel Thunder? Call toll-free: 1-866-889-7828. 9-5 CST M-F.

FREQUENTLY ASKED QUESTIONS

Please note that all prices are subject to change.

***

Steel Thunder Custom Cycles

3418 Teagues Road

Marshfield, MO 65706

417-468-2326

We hope you'll come visit us ... we'd love to see your ride!

 

 

With God All Things are Possible!

 

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