[strictlypersonl]

I was talking about the bottom holes, since those were what you wanted to use.

By the way, the Jag differential isn't just mounted to the top holes. The mounting system which absorbes the torque reaction and side load includes both the top and bottom/side mounts. I predict that using only one mount (upper or lower) would result in a broken casting or differential failure.

Note that the original cars' Salibury, while using a different casting, also used widely spaced mounts to absorb the torque reaction.