Every diesel truck on the road today has a differential and ring and pinion gear set in the rear axle. Four-wheel-drive trucks add a second set of gears and another differential to the front axle to ...
Most rear axlehousings are designed to use a shim to locate the pinion at the precise distance to the ring gear. In the case of a GM 12-bolt, Ford 8.8, or Dana 60, for example, the shim is placed ...