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Wehrli fabricated aluminum rear differential cover in gloss black, made for rear axles on 2020–2025 GM Duramax and 2019–2024 Ram Cummins trucks. The piece replaces the factory cover with a formed aluminum housing finished in single-stage powder coat and supplied with stainless fasteners and a drain plug for easier fluid changes and long-term corrosion resistance.
Wehrli 20-24 GM Duramax - 19-23 Ram HD Rear Differential Cover - Gloss Black
