Rear Knuckle: Description and Operation

A cast iron rear knuckle is attached to the upper control arm by the upper ball joint and to the rear shock absorber assembly. The lateral movement of the rear knuckle is controlled using two lateral arms attached to the bottom of the knuckle and by the upper control arm attached to the top of the knuckle. The outboard ends of the two lateral arms are mounted forward and rearward of the knuckle centerline, and the inboard ends are mounted to the rear suspension crossmember. Fore and aft movement of the knuckle is controlled by the trailing link.