parts interchange?

[redrider036]

Hey everyone, quick question here. I have a 1970 chevy 4x4 long box. If any of you remeber, I am the crazy idiot who is bringing my truck down to AZ from MN to work on it. I thought it would be a good idea to find a parts truck. I came across this ad and am gonna go take a look at this truck today. Will parts interchange? This truck is not 4 wheel drive but will body parts go on my 70? How about the rear differential and things such as that? Heres the ad....

*parting out 1971 chevy truck , long bed , PS / PB / disc brakes on front , factory air , 350 engine , holley carb , new front outer grill , no inner grill, Please email with what you may need. This truck is currently driveable , has good front fenders, hood , doors , etc.*

What do you all think? He is asking 750 for the truck. I will be back later and try to post some pictures of it. Also, I am thinking project "crazy train" for my build name, any thoughts on that are welcome too. Have a good day!