Rear differential mounting stud thread pitch?

[Jason Mills]

I pulled my rear differential and one of the studs needs to be replaced. It was turning in the hole with out advancing in or out. So far I am not understanding what the thread pitch is for the stud on the coarse side.

7/16-14 does not seem to be the correct size and pitch. What am I overlooking or not understanding here?

[Jason Mills]

Solved it: 7/16-14 or 7/16 coarse thread is the answer. The tap was hanging up just enough cause doubt, but it was not actually cutting new threads..