Hmmmm,
Well I used 2x3 1/4 thick to finish my body lift. I got the idea from a truck we junked out, this set up was on the core support and cab, the bed was all wood (lifted with 2x4's), so I took them off and just bought enough steel to do my bed. I used good bolts and I like it better then the plastic kits you buy, but just my 0.02. I've put this truck in some pretty bad twisting postions and not had a problem.Although I haven't jumped it yet either ( need longer front shackles) lol. I've had this set up for a couple years now with no problems. Then again my truck was orginal 2wd truck and instead of trying to put a front axle inunder the 2-by frame, I just opted to put my body on a 4x chassis. And had to make a body lift to compensate for the low trans. tunnel. I figure I'll get "blasted" for not spending money to "buy" a "kit" that has a fancy name onit. But it works for me. Just my $0.02