I have an '04 4x4 and as a fun do-it-yourself project I want to fab up my own lift kit. Just spacers and a rear block for some extra lift. I work for a forklift manufacturer so I have access to free steel and the use of machining equipment. I have been thinking about the PRG kit but I am need of a fun project, plus mine would be free. So...I need some input and advise from some of the experts here and maybe some dimensions of blocks and spacers. Any help would be great, thanks.