If you have the open driveshaft, you might be able to just swap out the center section without messing with the ring and pinion, assuming you can find a good used pumpkin with the gear ratio that you want.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.