4 to 5 speed upgrade

Discussion in 'Softail Models' started by McSparky, Jun 10, 2012.

  1. McSparky

    McSparky New Member

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    I have an 85 FXST W/4 speed electric+kicker.
    I also have a trans from an 85 FL (non softail).
    Will the 5 speed gearset work in the 4 speed case?
    I see many 85 to 89 FXST compatible cases advertised.
    Will the FL gears fit?
    Is there a compatibility list available?

    Thanks,
    McSparky