Ok gears have been identified. 40 ring teeth 13 pinion teeth. 3.08 I'm thinking. So going to add the posi. Open to comments on manufacture and while I'm there I could change the gears. Would like little more punch to get the two wheels turning but not crazy. Keep in mind that I believe the 71 400 in there may only have 250 hp max
I've never done this job before looks pretty straight foreward with exception of shimming to get proper gear mesh.
Leave gears alone? Change while I'm in there? Does maker matter or should I buy budget?
Restored by me. Not a professional. Restaurant worker by trade. YouTube forums and some trial and error built this beauty. Sheet metal replacement. Body work. Paint. Rear gears. Interior. And engine. ALL ME. Toot toot