To replace the rear axle housing cover and gasket for the 8.6 and 9.5 Inch Axle, Initial, raise, and support the vehicle. Clean the surrounding of the rear axle fill plug and remove its plug then remove the rear axle housing cover bolt that should be trashed. Gently remove the rear axle housing cover, allowing the lubricant to drain into a suitable container, and remove any gasket material from the rear axle housing as well as the cover. Check the bottom of the rear axle housing for an excess of metal particles, and it can serve for extreme wear. Secondly, put the rear axle housing cover with a new gasket on the axle housing, but again not using the old rear axle housing cover bolts. Replace new rear axle housing cover bolts and tighten in a crossshape pattern 40 Nm (30 lbft). Fill the rear axle with the right fluid, put the rear axle fill plug back on and put it on the top. Line it up, and it has to be 33 Nm (24 lb ft). Finally, take the support and lower the vehicle.