MZS Differential Drop Kit, Diff Drop Spacers Hardware Compatible with 2007-2021 Silverado 1500 4WD / 2007-2021 Sierra 1500 4WD CNC Machined

Good product. As others have stated, you’ll need to notch the crossmember and shave down some fins on the diff for it to clear. Turned out to be a bigger project than i anticipated, but worth it. Had some vibrations after a 3” level install at about 65mph, and this eliminated those vibrations. Would recommend. 2014 Silverado LTZ

This fit my chevy silverado 2017 LT I have a 3in lift kit in the front. I had to cut some parts on the diff . But now there is no strain on cv axles

Used the spacers but none of the nuts and bolts would work on my 17 silverado 1500 Went to the hardware store and got new bolts and everything went in smooth after that.

Fits 2017 gmc perfectly. Helped me correct my cv angle. Easy install. Good quality parts. Does not come with a sticker.

Becoming loose after driving on it for a couple day, what should it be torqued down too?

The hardware was all there and appears to be of high quality. It is what I ordered and that's why I gave it 5 stars now that being said on a 2011 gmc sierra 1500 with 3.75in rough country lift struts and upper control arms it's important to know this kit is for the diff mounts to frame connection and not diff to diff mount they fit great but be prepared to cut cross member mount itself as well as a section of cross member on driver side or the diff will hit and you won't be able to get the spacers in. Also it was necessary for me to cut the strut mount bolt shorter at the lower control arm because the cv axle was sitting on it. Be prepared to do some work for this install YouTube lied about how simple this was for sure lol

Works perfect when you install it the correct way.. used everything in the box and it helped my cv axel from being tore up with a 3.5” lift. Installed on 2017 Sierra Z71. You will need to cut some of the subframe for the diff to drop low enough. Super easy

Hard to install but it makes a difference