Top quality from BD as always. This diff cover bolts on great and keeps my diff oil cool under towing. Lots of thought clearly went into this part, it has some very nice design elements: stainless hardware, oring seal, added capacity and a curved profile to allow gear fluid to splash up onto the ring gear rather than away from it. Finally someone made an aftermarket diff cover that isnt just for looks! That right there make this diff cover worth getting if you tow a lot.