[MARKDTN]

Depending on what you want, it could be time for an overdrive upgrade. I could not convince myself to put that back together with 1 bolt, but that's just me. If you want a TH350 then I would find a case/core and have it built. You can bolt in a 200R4 with the same driveshaft. You could go to a 700R4 with the same yoke and a shortened driveshaft. Etc. I am concerned though that you have bigger problems. Did you say you broke a pinion yoke? Are you sure the rear end is OK?