This condition can cause (1) oil leakage into the rear brake and onto the brake linings; (2) rear brake damage from the axle nutsfalling into the rear brake drums; or (3) separation of the rear wheel/axleshaft from the vehicle resulting in an increased potential for a vehicle accident.
The nuts attaching the rear axle bearing oil seal retainers and brake backing plates to the rear axle housing may be under- torqued causing these units to loosen or fall off.