Proform 66667 Black Aluminum Differential Cover with Perfect Launch Logo and Bearing Cap Stabilizer Bolts for GM

Seal the center bolts with atv black thank me later

I bought this because I wanted a drain plug on the rear differential on my 4wd Astro. I consider the additional support for the differential bearing caps and the hot appearance a bonus. It is an easy swap if you don't mind getting oily, and it's probably time you put some good synthetic gear lube in the diff anyway. The fill plug is not a level plug, you must still use the factory level plug.My only caution is to unscrew the drain plug, and put some of the gear rtv on the threads and put it back in. I didn't do that and afterwards I had a slight leak, I had to drain the oil and seal the plug. But even so I think it's a worthwhile addition for anyone who takes pride in their motor...

This cover is excellent it serves a great purpose to add tension to the carrier caps to keep them from breaking which is a common problem when you put in a locker this fixes that problem very strong cover and helps prevent breakage

It feels very heavy duty the paint was perfect no chipping or flaking like in some reviews.. it really looks great once on ... The negative was the bolts provided are definitely too short it would bite with 2-3 threads only and I wasn't comfortable... So I believe I used 1 3/4 in Length.. last thing this is advertised as no gasket use , and only use gasket maker but I went with LubeLocker gasket which requires no silicone and wow amazing No Leaks enjoy!!

Looks nice fit good no leaks or anything.Good price and now every launch is a perfect launch!!

was a perfect fit, it helps brace the axle, has easily accesible drain and fluid add bolt holes... and it looks great too

Performs as expected and looks great. Looks better than the original rusted diff cover that was on my El Camino.

A typical S-10 rear cover. it was rusted and beyond repair. I figured I would try a less expansive cover but yet one with bearing holders. Directions were well written. Easy installation and it looks nice. Solid and heavy, it is holding up well to the rigors of being abused. Would go there again in a heartbeat.

Great product for my 99 trans am , and also looks good too if you could actually see it but it does it’s job , take a little more diff fluid because it’s a little bigger but no issues at all

Worked perfectly for our Astro Van AWD

Very nice piece of work. Looks cool but also very functional and well made. Thank you very much, Rod.

Good cover, black coating easily come off.