JIMS, pinion gear 54-77. Red - 54-E77 B.T.(NU) 537585 but it has the brutal

but it has the brutal looks of the Top Fuel drive and comes complete with the outboard bearing system for mainshaft support

and numerous other places that need to be re-greased on a regular basis

CAGED ROLLER TYPE

80-86 FXWG

Replaces OEM 1799

JIMS, pinion gear 54-77. Red - 54-E77 B.T.(NU) 537585 but it has the brutalGear size over . 105" pins: 1. 4480 1. 4475". Cam gear over . 105" pins: 2. 7675 2. 768". Made from the finest American aerospace quality tool steel. Precision machined to exact tolerances with no compromises. Note: Cam gear fitment is essential to quiet valve train operation. Too loose of a fit will result in a clicking noise, sometimes confused with lifter noise. A too tight fit will produce a whining sound and premature wear. Sizes are as follows: