Originally Posted by Jamison
Originally Posted by Bull_Elk
I just ran through the RPO's on a used truck I picked up and it shows it has the eaton G80 locking rear differential. Anyone out there have/had one and knows the positives or negatives?


Just do a google search on the Gov-lock locking diff... It is quite possibly the most hated locker in the off road world. They are known for coming apart inside the diff due to being made of cast metal instead of nodular iron. The mechanics behind how it works make it a ticking time bomb if you put any heavy use on it off-road. It'll probably last if you just occasionally go off-road or don't pull anything or if you don't run an oversized tire...They aren't really re-buildable without a $200 tool, so if it ever gives you trouble, put a real locker like a Detroit or an ARB in and don't look back.


Jamison's original BS. No clue which truck Elk has, or which rear end his G80 refers to. Is it an 11.5", 10.5"? Or a smaller 10 bolt? The 14 bolt is a G80 code. And one of the really strong differentials out there. Handles unGodly abuse. Most DMax diesels come with the towing options and is equipped with the G80 limited slip option, I haven't seen a sticker without them. No the G80 doesn't break when you pull something or run an oversized tire. And it's not the same differential as in my '94 light duty 3/4T. Or small block gas trucks. Go to a GM diesel forum....a great many of those guys have modified engines, some extremely modified. A great many of them race. Lots of them tow heavy. And most run oversize tires. Ask now many differentials have broken.

Trying to come on like the authority. Now you're waffling. You and that toad guy....a couple of toads.