Review on Enhance Performance with Mag-Hytec Rear Differential Cover for Dodge Van, Ram 1500, Durango & select Dakotas (12-9.25 axle) by Andrew Lyons

Good product. I installed this cap after realizing my bearing was leaking and I never bothered with the lame bearing filler plug so I went with the Mag-Hytec rear diff cap. Fits perfectly and has a reusable O-ring 0 but there are a few issues. At first he only added half a liter, not 2 liters. Second, the knurling on the dipstick does not have a scale like "Full" or "Add" and is 1-1/2" longer on the dipstick than when it is full. Seals on the back, so you have to remove the small plug on the cover to allow the oil to flow out when the correct oil level is reached. Third, the lid is larger, which is to be expected, but it rubs against my spare tire when fully ridden. So if you stock a 4x with a larger spare you may need to move the tire. Aside from those minor issues this is good coverage and well worth the investment.