Works with Harley 4 speeds 1936-1985

Chrome plated retainers and acorn nuts are reproductions of original parts used on 1936-52 '45s

See diagram in photo gallery to reference series number and hose outlet direction

The frame is pre-drilled to fit the Gasbox battery box adapter plate to mount a Gasbox Universal Battery Box

rotor spacing may be necessary in order to assure proper alignment

Heavy Duty Clutch Spring Kit 1968-1984 Harley-Davidson Big Twins Bar Clamping Diameter_1 inch Works with Harley 4 speedsSet includes 10 heavy duty springs Replaces Harley Davidson OEM# 37077 68 Get that Shovelhead dialed in and make sure you are transferring all that power to your rear wheel and the pavement. This Heavy Duty Clutch Spring Kit fits all 1968 1984 Harley Davidson Big Twins. Set includes 10 heavy duty springs that replace Harley Davidson OEM# 37077 68. See Additional Information for fitment.