USA Standard Gear Differential Master Overhaul Rebuild Kit for 1999-2008 GM 8.6" Differential

Great quality

Perfect fit, and a fraction of the price of box stores for the same product.

Arrived really fast I loved that they send it through UPS and didn't have to wait all day Great product

I am happy with this kit and its pricing. The bearings and races were Koyo, a top quality bearing manufacturer. The carrier bearings were USA and the pinion bearings were Japan. The kit came with left hand threaded ring gear bolts, though I didn't use (need) them. It came with several pinion shims and a set of sandwich shims from the carrier bearings. It also came with a differential cover gasket, crush sleeve, thread locker, 1-1/4" pinion nut, a pinion seal, gear marking paint and a brush. It even had a little instruction booklet, but it was pretty general information. It had information about pinion pre-load specs, but from what I found on the internet, the specs provided were on the low side. So check the FSM for what GM has to say on the issue, if you can find one. I found that diluting the paint with one part paint and three parts gear oil worked very well. It was every thing in the picture, plus the gasket. Shipping was priority mail and I had it in three days of ordering. Its a nice, quality kit packaged on a shrink wrap type of blister board so that things don't bang against each other in shipping.

This kit was absolutely problem free. The entire Remove and Replace (R&R) procedure was flawless. I shal order all parts from this sight from here on in. Thank You Amazon& USA Standard Gear. 😉

Great bearings! I've been using them for several rebuilds and I haven't encountered a problem yet. there is plenty of shims. I personally like the nut, if used with a crush sleeve there is no way that baby is coming off let alone with red loctite. I would recommend a set that includes a set of the same pinion bearings without the other items so you can make a set of pinion set up bearings. That alone will make a world of a difference setting up your rear end. You can just slip the shims in and out as you desire without damaging the bearings.

The bearings were good quality and everything was actually accurate. And I would’ve given it a five star rating but you need shims for this job, and the shims were all bent up especially the ones I needed. There were not enough variations in sizes of shims or in number of quantity. That made my job really tough. I wound up taking the differential out at least a half a dozen more times because of that.

Just what I needed to put my rear axle back together. Worked great everything fits perfectly. The kit included everything that you needed for the replacement of the rear gears on the axle right down to the marking grease.

I'm happy with this kit as it had everything I needed to fix my rear differential on my truck and get it up and running again. The bearings and components seem to be of good quality. I'd recommend.

This kit worked for my truck. Had all the parts necessary

Worked well for my use

The installer said this was a really good kit and everything went together really well.