westcoastamc

Trunnion and Spring Servicing

The road wheel, drum (or rotor), wheel bearings, spindle, brake hardware and back plate ultimately all hang on the steering knuckle. The bottom of the knuckle attaches to the lower ball joint. Here comes the fun part: The thrust bearing sits on a flange on the upper part of the knuckle. The bottom of the trunnion rides on the  ...