Truck Tech TV host installs a Ram-Air diff cover on his 2020 Duramax.

Lawrence "LT" Tolman is about to embark on a summer of towing. The Truck Tech TV host will use his 2020 GMC AT4 Duramax to tow his sport truck to various events. In preparation, LT is doing what he can to minimize temps and wear on key components including the rear differential. To keep his rear gears cool, LT chose Banks' patented Ram-Air rear diff cover which outcools high-capacity flat-back covers by 5X.

Learn more:
https://bnks.pw/diffcover