[customcamper72]

#1. no, 1/2 ton uses smaller diameter rotors, so the mounts place the calipers in different locations. #2. yes, you should be able to use any dana 44 or G.M. 10 bolt rotors & caliper brackets. #3. I think 1/2 ton & 3/4 ton use the same spindles, the only difference might be between internal and external style lockout hubs, but you could check part numbers for both styles & compare them.