Roll cage

[rjeep77]

Is it best to start with the factory bar and tie it in and ad braces the hoop over my head is tied to the frame. and if to start from scracth what size tube.

[Bones]

what vehicle?

[rjeep77]

1987 Yj Tub and a CJ7 frame

[Haggar]

What is your level of fab experiece, and what tools to you have? (Big items here are do you have a decent welder, and a bender?)

Easiest is to just buy a pre-fab front hoop, which isn't too much from 4wd/quadratec, which will tie to the stock rear bar.

Then fab up supports from the frame to the cage, mounted correctly with dissimilar sized plates, and bushings/isolators of some sort.

Tube size would be to match the rear of your stock cage, its probably 2" x 0.120" HREW.

If I was going with a fully fabricated cage with a good bender, I'd use 1.75 x 0.120" DOM mild steel(not chrome moly).

ALthough I've done my trucks tubework with 1-1/4" Sch 40 structural tubing, which is 1.66 x 0.140 wall. Held up just fine to my rolls in tellico(one hit hard, one was a soft flop), and other trail damage.

My Jeep, I'll use the DOM, if I ever get around to building it.