General motors installed the eaton g80 gov lock on many chevy 4 4 trucks with 10 and 14 bolt rear differentials.
Chevy truck locking rear differential.
Although these are adequate for typical street driving they are not suitable for high performance or extreme use such as hard four wheeling or straight line.
Click on a differential below to view photos measurements and carrier breaks as well as applicable models and available parts for that particular fitment.
In general motors case the eaton g80 automatic locking.
While a differential usually allows each rear wheel to rotate at different rates automatic locking rear differentials lock the rear wheels forcing both to rotate at the same speed.
The truck has a locking rear differential and different drive modes along with features typical of gmc trucks such as the brand s unique lift gate and a carbon fiber bed.
Look for the ones that start with a g g80 locking diff gu4 3 08 gu5 3 23 gu6 3 42 gt4 3 73 gt5 4 10 but if you have an open diff or locker it still takes regular gear oil.
The differential is a drivetrain component that is used to transfer power from the engine to the wheels.
You can check that by opening your glove box and you ll see a silver sticker full of 3 digit codes.
However you could have a locking rear differential.
General motors has been offering an automatic locking rear differential in its chevy and gmc trucks for more than 40 years.
Gov lock differentials were installed in many late model gm trucks.
Customers in the market for a mid or full size pickup truck are well aware of the benefits that come with a rear locking differential.