I was just curious tbh I’m not looking at any specific parts. I heard different people say different things so I wanted to know. If the 2500 frame is more heavy duty I might go with that.I do not know difference other then width I believe and maybe some mounting holes and cross section and suspension mounting and bumper reinforcements.
yes AVY is based on suburban frame. 1500 based on 1500 and 2500 based on 2500 there are differences...
Check a GM website for frame PN and heck I just looked there are plenty even though not a lot of options in 2002.
See stuff that fits 1500 does not fit the 2500.
Hitches come to mind.... brush guards on front is another.
big question is WHY?
and maybe we can help you better....