The Stovebolt Site Forums The Shop Area Engine Shop 3/4 ton AD & C20 rear end, how different?

I thought Chevy and GMC used different axles? And what’s a IIRC?
I wrote to Randy’s Ring and Pinion and never received any sort of response one way or the other.
First option is out, I am gonna keep the 4.57, but on the shelf, I’m not going to run it.
Simple answer: Let me see if I got this straight; if I don’t take you literally, that is “get a ‘69 pumpkin” you are saying that in the worst case, all I have to do is find any 3/4 ton ‘62-‘72 center section and try to get a ring and pinion from Randy’s for it. Does that sound right?????
Denny G