Wehrli Rear Differential (20-24 GM Duramax, 19-23 Ram HD)Find parts that fit my vehicle

Your drivetrain is all the components responsible for transferring power from your engine and delivering it to the wheels. Drivetrain components are vital to your vehicles operation.

If you bring your vehicle off road and do a lot of rock crawling, you may need some armor for your rig. Your vehicle's differential is one of the most vulnerable parts when off-roading. By installing a quality diff cover on your differential, you can avoid a breakdown on the trail and enjoy your time outdoors.

Pop the hood on a diesel enthusiast's truck somewhere in North America and you may find my company's logo on the engine. Welded to an intake or intercooler pipe, this logo represents an awesome responsibility to the diesel enthusiast community that has supported WCFab over the years. It's a responsibility and commitment to ensure WCFab products meet the highest standard of craftsmanship and fitment. We care enough to put our name on it.