The new matte black Rugged Ridge Boulder Aluminum Differential Covers are constructed from A356-T6 cast aluminum for strong impact resistance and feature a precision machined sealing surface, allowing gaskets or RTV sealant to be used for a leak-free seal. Each cover is designed to help protect internal components from damage caused by contact with rocks and other terrain off-road as well as aid in dissipating heat from differentials. These covers also come complete with a magnetic drain plug for protection against costly damage from metal particles that can accumulate in gear oil and include a specially designed dipstick bolt to help Jeep owners avoid under or overfilling their differentials. Patent No. D798,906. This high strength cast aluminum differential cover from Rugged Ridge fits Dana 30 axles.
