The loud clunk when you shift from drive to reverse is a little worrying, but you can breathe calmly now that your Chevy is safely back in your garage. Scoot under the vehicle to check out the Chevy front differential before your next drive. The differential allows your wheels to rotate at different speeds, which is vital when you turn a corner in order to maintain traction. Most modern vehicles have a just rear differential, but your all-wheel-drive Chevy also has one at the front. Differentials are available for the popular SUV 8.25-inch front end for the 1500, Avalanche, Suburban, and other Chevrolet models. They are quiet to run and in most cases use pinion gears and an OE ring. When you install the front differential, you may want to change the differential ratio to better suit your driving needs. If you change the ratio at the front, remember to do it at the rear as well. While shopping, consider purchasing a Chevy truck differential cover with a chrome-plated finish to protect the intricate moving parts. Search the large inventory on eBay for Chevy front differentials if you do not want a disabled drivetrain to leave you stuck in the middle of the road.Shop the large inventory of car and truck parts and other differentials and parts for Chevrolet!