How do you replace gasket on rear differential 1994 Toyota 4 wheel drive pickup truck?

To replace the gasket on the rear differential of a 1994 Toyota 4-wheel drive pickup truck, first, lift the vehicle securely and remove the differential cover bolts using a socket wrench. Carefully pry off the cover to access the old gasket, clean the mating surfaces thoroughly to remove any residue, and then apply a new gasket or gasket maker to the differential housing. Reattach the cover, ensuring proper alignment, and tighten the bolts in a crisscross pattern to the specified torque. Finally, refill the differential with the appropriate gear oil.