8.75 question

That gear set is branded as Hoosier or Yukon.

They usually set up like an OEM 742 ring and pinion with around 0.090" pinion depth shim.

What does your original pinion depth shim measure?
If I remember correctly the shims I took out originally were .030" I do know I shimed the one I bought from you up more the get the contact patch where I wanted it.