Review on Enhance Performance with Proform 66668 Black Aluminum Differential Cover: Perfect Launch Logo & Bearing Cap Stabilizer Bolts for GM by Shane Jenkins

Really wanted to give it a full five but the screws that come with the cover are pretty crappy. End cap, you expect a set of ARP screws to go in there. Other than that it looks good, well sealed (DO NOT use a gasket. Ultra Black or Hi-Temp RTV is what you want; and remember to use the FACTORY fill hole as a guide. Open it up, use that Rear cover fill hole for adding fluid, and if it starts dripping out of the factory fill hole, stop, it's full.), and the stock mounts are pretty steep. It's just a shame they didn't add some ARP (or equivalent) screws. That's not enough of a reason to stop them from selling a ton of it, they might just sell a ton more if they did. The lid is flush with the T/A etc so screws can be a win-win. Buy it and order some discounted ARP screws.