hey guys im starting to gather parts for a new project I'm doing ,, so far i have a lb7 d max that im planing on putting in a 67 1 ton 4x4,, my question in what is the zf good for hp wise and is there parts available for them , ie billit shafts. Or do u think i would be better off adapting a nv 4500 to it and have someone like southbend build me a clutch. my goal once i'm done will be 750 hp thanks