Carlos, Miguel and the boys at Premier West took care of my 2020 ZR2 Bison. Previous owner had another shop regear it to 4.10s and by the time I bought the truck, the pinion bearings were shot, and the ring gears were already showing some pitting on the face of the teeth. They were able to reset preload and pinion depth with a new Yukon bearing and crush sleeve kit before the gears completely ate themselves. They also pointed out that the previous shop bent the pins on the rear locker plug, then went ahead and fixed it no charge. So, now I've got a quiet truck with working lockers! These guys are pros and reasonably priced. These dudes ripped into both diffs and had me back on the road same day. I cant recommend these guys enough. I'll be heading back there when I'm ready for 4.56s. Thanks again guys!