Have a new in box never opened PPE aluminum flat bottom oil pan for 01-10 Duramax engine. Bought for my personal truck but sold before I got it installed. It is heavy aluminum, adds extra oil capacity, and allows for complete oil drain. The factory pan has a hump in the middle and leaves around a pint of oil that never gets drained out. Paid $300 total, asking $275obo. Call or text Dave @9312608781