i just picked up an 88 Z71 (should i put that in my user name? 85burbanator Z71 does have a nice ring to it.) any way. the bed is pretty beat up so im going to build a flat bed. im not sure what materials to use and how to attach it to the frame though. ive got tons of 2.5 square tubing so i think im going to use that. should i use rubber bushings when attaching it to the frame what? if any one can help me out on this id appreciate it.