680251: 6-Speed Transmission Assemblies. Left-Sided Drive 6-Speed with kicker for Softails. Fits Softail models from 1990-1999 - Polished. (OEM: TDC-LS6PK)
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See in 2011 Catalog
All-new, 6-speed transmission assemblies. Formerly The Driveline Company.
These transmissions for Softails are available in right and left-side drive, with your choice of three different finishes polished, black, and natural. The left-side drive transmissions are offered with a stock end cover, or an optional kicker that has a fully-machined forged aluminum kicker cover, and precision-machined shafts with specially-designed ratchet gears. The RSD transmissions feature a forged billet aluminum support plate with a hydraulic clutch cylinder and contemporary stying, a large-diameter outside pulley support bearing, and a gold zinc-coated 32-tooth lightened pulley. The LSD transmissions feature all-new 356-T6 cast aluminum cases, with forged trap doors.
All TDC transmissions were subjected to independent dyno durability testing by a U.S. company in Texas. They were tested for over 120 non-stop hours at extremely high loads, as well as an additional 50,000 shift cycles (10,000 in each gear), and passed easily.
The RSD transmissions are designed for custom wide tire builds, and the LSD transmissions fit 19901999 Softails, as well as most custom aftermarket frames.
Note: Installation on 1994 and newer models will require a speedometer recalibration unit
RSD transmission features include:
Assembled in America
Unique new RSD design
Large 4.30"-diameter outside bearing support for pully
Forged outer support plate with hydraulic clutch
Gold zinc pulley
Stylish window cutouts
Some of the other features these transmissions include:
Precision-machined, investment cast steel shift forks
Fully CNC machined steel shift drum
Cast 356-T6 aluminum cases
Forged 6061 aluminum trap door
2.93:1 First gear
2.20:1 Second gear
1.60:1 Third gear
1.23:1 Fourth gear
1.00:1 Fifth gear and a .88:1 overdrive sixth gear
8620H high nickel content chromemoly steel gears
Extra-quiet gear tooth profiles with helical 5th and 6th gears on the left-side drive transmissions
Endurance dyno tested by an independent U.S. test lab.
Left-Side Drive 6-Speed for Softails
Shipping dimensions: 16.50" x 17.50" x 12.50"
Approximate Weight: 51.00 lbs
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