Reduces vibration and improves acceleration & increased gas mileage on a long run.

Has a forged aluminum trap door and gears made from 8620H chromemoly steel with precision-ground teeth and back-cut gear dogs for smoother accurate engagement.

Delivers a quieter overal operation with strength and durability, along with precise gear shifting by the use of a radially-uniform shifter cam.

A close-ratio 2.94:1 first gear and .893:1 overdrive 6th gear.