This Premium Duramax/Cummins Rear Differential Cover Bolt Kit is an optional upgrade for Wehrli Custom Fab Diff Covers comprised of 12 specially selected high strength Stainless Steel 12-point ARP fasteners and matched washers for use with WCFab Duramax/Cummins AAM 11.5" Rear Differential Covers (WCF100113) and 2020-2025 GM 2500/3500HD & 2019-2024 Ram 2500/3500 Rear Differential Covers (WCF100114). Replaces the Socket Head Cap Screws and washers which are supplied with our kits standard to help put the finishing touch your custom build.
