Black welded differential cover with zinc fill plug bolted to a…

Close-up of a black rear differential cover bolted to a solid axle housing, with a visible weld seam across the face, a zinc-plated fill plug and ten zinc bolts around the flange. A brake line runs down the right side and a wood board and floor jack sit under the axle in the driveway.

AI caption January 2011 · Photo 194 of 203