My build is a 49 3100. Found a great 55 235 and SM420 for minimum modification after finding 216 engine bad. The engine that came with truck was not original and had no SN anyways. Can you veterans recommend a rear end to go with this engine and transmission combo? I have the original but at a minimum will upgrade gears to 3:55:1. However before buying anything from Patrick's wanted to get suggestions.

Thanks

PAtrick