The Stage6 R/T gear cover is developed for use on tuned engines and is made of very strong aluminum. It is designed so that there is no need to mill the cover when installing oversized pulleys. Inside, it is equipped with needle bearings at the gear shafts for longer durability and increased stability. The orange part of the gear cover can be detached, allowing you to check the gears without having to drain the oil. Unlike other gear covers, it doesn't require a paper gasket, but instead uses o-rings to ensure it seals tightly against the engine block.