Tim, if you tear it apart yourself, get a reading on the gap between the ring and pinion teeth. You'll want to set up the distance as it is now, not back to factory specs. If you do, you'll have noise and probable future gear wear.

Jeff


My 1953 Chevrolet
1947.1 Gallery
1972 C-10 1/2 Ton & 1972 C-30 1 Ton