Polished Aluminum Differential Cover, 10 Bolt Rear. Choose from 34 different colors. Differential cover is finned aluminum and made from 356 aluminum alloy, heat treated to a T-6 condition for strength and durability. They are not only attractive, they have a larger oil capacity and offer better heat dissipation from the aluminum fin design. Mounting hardware, drain and fill plugs are included.
Note: GM has manufactured many different 10 bolt axles, be sure of your application before ordering.