Review on Upgrade Your GM 12-Bolt Truck Differential with 🔧 USA Standard Gear (ZG GM12T-342) Ring & Pinion Gear Set by Bob Vulpes

Update (7.26.19): They have finally been installed. I have had no issues, they are quiet, leak as expected and to confirm for those who are unsure, the kit I received WAS ABS COMPATIBLE. However, I would like to warn you that these may not be all of them as the manufacturer themselves have stated that they are not ABS compatible. So be aware. I bought a ZG GM8.5-342 (3.42 kit) for my 1996 Impala SS. It wasn't clear to me if the transmission had an ABS troubleshooter, the stock US transmission didn't help clear things up. I've contacted several other "technical" sites including Summit Racing and mostly they either said the part wasn't compatible or they couldn't be sure. See attached photos of what has arrived. I haven't installed the gearbox yet (will update my review when I have it) but so far the parts look compatible with the ABS reluctor ring (ton). FYI, for anyone changing gear ratios, be sure to purchase the correct reluctance ring for the gear ratio you choose.