Originally Posted by Ackman
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.


I'm trying to figure out where I am waffling. I showed you a GM Service bulletin where it plainly states that the G80 option in TRUCKS are LOCKERS, not limited slips. There are many places online, including your beloved diesel forums, where you can plainly find info that ALL G80 LOCKERS in TRUCKS are the Eaton MLocker. It doesent matter which truck or rear end the OP has, if it is in a truck, it is an Eaton M Locker or GovLock. Just different versions of the same design....

You are making yourself look like a retarted kid who can't read and comprehend what is plainly put before you, so you have to resort to referring everyone to other forums where I have already been and found that majority of people there only run them until they can afford a real locker...See the post above.
I am going to agree to disagree on this subject and leave it alone. I like to read the forums for enjoyment, and not once did I ever claim to be an expert othis subject,, I merely passed along first hand info from the rigs I have seen in my Offroad club. You feel free to rant and rave all you want now, you are the one making yourself look like a fool.