To replace the rear axle housing cover and gasket on an 8.6 Inch Axle first lift the vehicle and clean the surroundings of the rear axle fill plug and then remove it. Next, Remove the rear axle housing cover bolts and dispose of them, and carefully separate the rear axle housing cover from the axle housing, discharging the lubricant into suitable container. Take out any gasket material from the rear axle housing and from the cover, and check the bottom of the rear axle housing for metal particle accumulation, which is a sign of extreme wear. For installation, new gasket and rear axle housing cover on their position on the axle housing without any reuse of rear axle housing cover bolts. Replace the new rear axle housing cover bolts and tighten it in a crossed pattern to 40 Nm (30 ft. lbs.). Drain the rear axle and replace fill with correct fluid and reinstall the rear axle fill plug, tighten it to 33 Nm (24 ft. lbs) before lowering the vehicle.