I have decided to start a thread to document my rebuild. The MAX IV will get new axles and sprockets, engine mods, changing of the shift levers and such to tie rods. New roll cage which will tie in to the frame and outside rail to prevent body sag. Relocation of battery and removable seats for cargo storage, etc.

That being said I am looking for input on roll bar tubing sizes:

1.) what is the typical roll bar tubing size and wall thickness?

2.) How about the angle iron used around the frame?