This Differential cover is a 1 piece Plate steel cap 3/8" (.375") thick bent 8 ways then welded to a 1/2" ring, we had to make it thicker to make enough room for the thickness of the cover, it just happens to make it 30% stronger too! The fill plug is a generous 3/4" ID for easy fill and oil level check. This is arguably the strongest Diff Cover made for a Dana 30 axle.
We manufacture this and all of our covers out of A50 Plate Steel, that's 50,000 PSI Tensile strength. After welding, the mounting surface is machined absolutely flat for a perfect fit! This is for a fully welded D30 Differential Cover with fill plug ready to plug and play.
