Roll Cage Questions

[Stuka]

Hey all, I am considering having a custom built cage done for the chero, and I have a question...

Where does everybody tie into the frame?

With a standard 6 point cage, with the front 4 being in the normal places (two just behind the front seats, the other two just in front of the front doors in the foot well area). under neath I see the body ribs, and for the two behind the seats there is a body mount right there. Unless you guys tied in to a different place?

I would really hate to go without frame tie ins.

[4x4fEvEr]

im confused. a body mount is in the way? as in tieing into the top of the frame? isnt the cage sitting on the outside of the body past the frame rails and needing to be angled back into the side of the frame? thats the idea i had in my head anyways.

would the 6 point cage tie infront or behind the rear fenderwell? or would a 6pt cage not be enought to go from behind the seat to the tailgate with out another tie in between the two?

[Stuka]

The body mounts along that area out outboard of the frame. Go look and you will see what I mean. The mounts arent on top of the frame in that area. The cage would tie in at the A and B pillars, the rear mounts would go to the wheel wells.

[4x4fEvEr]

ill have to check that out when i get back home saturday, ive obviously havent been paying my jeep enough attention. i found that with my bj's rollbar in my cherokee that it would be hard to tie it in where it mounts on top of the wheelwell and not get into the tire while flexing, but i had planned on using square tubing as its more plentiful for me.

[Sambo]

with my factory bar it sits behind the seatbelt houseing!bar behind the front seats with runners going back to top of wheelwells...
http://www.fullsizejeeps.com/jeeps/files/1974-1983-Cherokees/topoff4.JPGwith where it sits i can tie into the sliders i made,and the floor is sandwiched inbetween the plates i made..

[Dmntxn77]

Just start bending and building... It should only take you 3 or 4 hours to finish a standard 6 point cage. You could even do the trial and error method, and still be done in an afternoon.. :D ;)

[Stuka]

LMAO, yeah, and it should only cost me 150 bucks or so! :D

[Dmntxn77]

$150... Yeah right.. Thats WAY too much.. Maybe if you include the cost of the beer... :D

[scotty]

my front bars go thru the floor and attach to the top of my nerf bar(rock sliders) mount,wich is something like 2x4 rectangle tube,somewhere round 1/8" thick,IIRC. its pretty stout. most of the cages i do i mount the front in this manner. it works out well,and the bars/sliders are a must around here if you care at all about the body,due to the tighness of the trails and the high concentration of trees

my 2nd bars are actually a ford stepside rollbar,aNd as luck would have it,the tubes ended up directly over top the frame rails,so i cut holes in the floor and ran a tube straight down from the rollbar to the top of the frame rail. the next 2,and last 2 also go straight down to the top of the frame.

i did a cage on a cj5 that couldnt really have the middle bar any further forward,and had the body mount in the way where the optimal location for the bar was. i removed the body mount bolt,and put a plate over top of it. i drilled a hole in the plate and put a new bolt all the way thru the plate and mount,and then attached the tube to the plate. plenty strong,id think,and effectively tied to the frame.

ill see if i can dig up any pics of it.

[scotty]

ok,i dug up a couple of pics. actually,i used angle iron up top,not a flat plate. a view from the top:
http://i7.photobucket.com/albums/y269/scotty85/rollcage5.jpg

in his case,the original bushing,etc. was gone,so i replaced that with a piece of ractangle tubing,and another piece of angle to suport it all.a view from the bottom:
http://i7.photobucket.com/albums/y269/scotty85/rollcage6.jpg

but you get the picture,anyway,you could do the same type of thing with the stock body mount and some plate or angle up top to weld the tube to.

another shot. you can see the front bar going down to the nerf bar mount thru the big rust hole where the floor should be ;)
http://i7.photobucket.com/albums/y269/scotty85/rollcage7.jpg

last and not least,the nerf bar mount that supports the front tube. this is this same cj,but its just like what i did on my jeep.
http://i7.photobucket.com/albums/y269/scotty85/nerfbarmount1.jpg

[Stuka]

Ahh, thats an idea...

Thanks :)

[4x4fEvEr]

The body mounts along that area out outboard of the frame. Go look and you will see what I mean. The mounts arent on top of the frame in that area. The cage would tie in at the A and B pillars, the rear mounts would go to the wheel wells.

ok i went and looked and yeah the body mount is right there. my rollbar sits directly behind that spot so its visible in the pop out glass for the back seat and can easily tie into the frame. you could just scoot it back a couple inches right?

[Stuka]

Ahh, yeah. I havent done any official measurments yet. Justby eyeballing it looked to be right there.

[incommando]

My usual roll cage comment, for some noob that may read this someday:

Mount your seats to whatever your cage is mounted to. If your cage bolts to the floor pan, bolt the seats to the floor pan. If your cage bolts to the frame, bolt your seats to the frame. In either case, bolting your seats onto crossbars built off of the cage instead of directly to the frame/floor pan is the best way to insure maximum safety.

A frame mounted cage and pan mounted seats can lead to a "squish" situation, and vice versa. This may sounds silly, are even so elementary that some feel it goes without saying, but there is a reason that most sanctioning bodies (nhra, etc..) require this.

[Grimjaw]

In either case, bolting your seats onto crossbars built off of the cage instead of directly to the frame/floor pan is the best way to insure maximum safety.




I always liked this way of mounting the seats. In a worst case freak accident you and the cage remain together....rolling down the highway.