Chevy Truck Locking Rear Differential

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.

Chevy truck locking rear differential.

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. The differential is a drivetrain component that is used to transfer power from the engine to the wheels. While servicing the differential on a 2004 silverado pickup truck i thought i d take the opportunity to explain how a locking differential works. Randys carries gm differentials from the small 6 5 as found in the chevy vega up to the larger gm 11 5 common under 3 4 and 1 ton trucks from chevrolet and gmc.

General motors has been offering an automatic locking rear differential in its chevy and gmc trucks for more than 40 years. 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. Today its prevalence has grown to include every body on frame rear. In general motors case the eaton g80 automatic locking.

You can check that by opening your glove box and you ll see a silver sticker full of 3 digit codes. 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. Gov lock differentials were installed in many late model gm trucks. Click on a differential below to view photos measurements and carrier breaks as well as applicable models and available parts for that particular fitment.