Rear End Help Please

[sickboy_1456]

Hey guys, first let me start off by saying this is the best site ever. I've been slowly restoring my 65 c-10 LWB and I've learned a ton from you guys. Anyway, I need some help...and I know this is probably a topic that may have been beat to death, so please don't kill me.

I just picked up a 72 c-10 donor for free. It has the front disc/power steering I need. However, the rear end is my question. I know the 72 rear will bolt right in, but I've heard that it might be wider. Is this true? Is it still workable or should I skip using that rear end? Please help. Thank you!