You could give us a clue as to how the truck is going to be used, and possibly even what lug configuration you are looking for. There are just way to many undeclared variables for anybody to give you a remotely meaningful answer.
That being said... What lug pattern are you looking for? 6 on 5.5? 5 on 5? 5 on 4.75? These are just a few lug patterns available for chevy.
What about gears, are you looking for low gears like 4.11, or high gears like a 3.08 ratio. Posi?
What kind of brakes? Disc? drum?
Some of the rears that have been sucessfully transplanted to ad chevy trucks include... 10 and 12 bolt truck rear ends, Dana 44 rears, camaro rears, cadillac seville rears. You name it, and it has probably been put in these trucks.
The stock width of the AD truck axle may end up being to narrow for some of the modern rim choices. Because Modern rims tend to have much more backspacing then the older rims, it may be necessary to get a rear that is several inches wider than stock. A stock ad 1/2 ton rear is approximately 61 inches wide.
There isn't one answer here that fits everybody's needs. Figure out what wheels you will be using and start there. Next figure the width of the axle you need. Now you have that figure out the gears, etc. There is plenty of information on rearends on this site. If you conduct a search you will find days worth of reading on the subject.
Last edited by bigbadswingdaddy; 12/12/2010 9:51 AM.
