6-Speed Overdrive Transmission — 6-speed, 0.86:1 sixth gear, close-ratio

JIMS 6-Speed Overdrive Transmission — 6-speed, 0.86:1 sixth gear, close-ratio – 91-99 Softail

JIMS
DS-325854
8000C6

Precision-fit transmission for Evolution motors ('91–'99); CNC-machined gears, requires separate clutch-release rod, bearing, final drive sprocket and lube.

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Precision transmission engineered for Evolution engines. CNC-machined gears and shifter dogs with lead-in ramps deliver smoother, quicker shifts. 🔧⚙️

  • Includes a close-ratio 1st gear with stock 2nd through 5th and an overdrive 6th gear for highway cruising.
  • Gears are CNC-machined; shifter dogs are machined with lead-in ramps for reliable engagement and faster shifts.
  • Designed for use with '91–'99 Evolution motors; will fit earlier years when used with a '91-or-later starter motor, clutch and inner- and outer-primary drive systems.
  • Requires a clutch-release rod and bearing, final drive sprocket and transmission lube; recommended Bel-Ray 85-140 gear lube. All sold separately.
  • Manufactured in the U.S.A. and assembled in a technologically advanced facility. Made of 8620 steel for long-term durability.

Sold each; hardware and installation parts not included.

: DS-325854
Out of Stock

Data sheet

Units
Each
Style
Overdrive, Close Ratio
Brand
JIMS
Transmission Type
6 Speed
Sixth Gear Ratio
0.86:1
Material
Aluminum
Harley Family
Softail

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Heritage Softail Classic Softail 1991
Harley Davidson Heritage Softail Classic Softail 1992
Harley Davidson Heritage Softail Classic Softail 1993
Harley Davidson Heritage Softail Classic Softail 1994
Harley Davidson Heritage Softail Classic Softail 1995
Harley Davidson Heritage Softail Classic Softail 1996
Harley Davidson Heritage Softail Classic Softail 1997
Harley Davidson Heritage Softail Classic Softail 1998
Harley Davidson Heritage Softail Classic Softail 1999
Harley Davidson Fat Boy Softail 1991
Harley Davidson Fat Boy Softail 1992
Harley Davidson Fat Boy Softail 1993
Harley Davidson Fat Boy Softail 1994
Harley Davidson Fat Boy Softail 1995
Harley Davidson Fat Boy Softail 1996
Harley Davidson Fat Boy Softail 1997
Harley Davidson Fat Boy Softail 1998
Harley Davidson Fat Boy Softail 1999
Harley Davidson Heritage Softail Special/Nostalgia Softail 1993
Harley Davidson Heritage Softail Special/Nostalgia Softail 1994
Harley Davidson Heritage Softail Special/Nostalgia Softail 1995
Harley Davidson Heritage Softail Special/Nostalgia Softail 1996
Harley Davidson Heritage Softail Springer Softail 1997
Harley Davidson Heritage Softail Springer Softail 1998
Harley Davidson Heritage Softail Springer Softail 1999
Harley Davidson Softail Softail 1999
Harley Davidson Softail Night Train Softail 1998
Harley Davidson Softail Night Train Softail 1999
Harley Davidson Softail Custom Softail 1991
Harley Davidson Softail Custom Softail 1992
Harley Davidson Softail Custom Softail 1993
Harley Davidson Softail Custom Softail 1994
Harley Davidson Softail Custom Softail 1995
Harley Davidson Softail Custom Softail 1996
Harley Davidson Softail Custom Softail 1997
Harley Davidson Softail Custom Softail 1998
Harley Davidson Softail Custom Softail 1999
Harley Davidson Softail Springer Softail 1991
Harley Davidson Softail Springer Softail 1992
Harley Davidson Softail Springer Softail 1993
Harley Davidson Softail Springer Softail 1994
Harley Davidson Softail Springer Softail 1995
Harley Davidson Softail Springer Softail 1996
Harley Davidson Softail Springer Softail 1997
Harley Davidson Softail Springer Softail 1998
Harley Davidson Softail Springer Softail 1999
Harley Davidson Bad Boy Softail 1995
Harley Davidson Bad Boy Softail 1996
Harley Davidson Bad Boy Softail 1997