I did want it to be removable. Too many photos to post here but here is some of the build photos:
http://www.rc-tech.net/pantera1/rollbar/roll.htm
http://www.rc-tech.net/pantera1/ladder/lad.htm
Notice the tubes put in the channels to bolt it in so it does not compress the channels. With the front mounts notice the structure built into the frame rails. Keep in mind in my situation I removed the AC and changed how all the wires are run so this makes it difficult for most others to do this.
Jerry at PIM welds heavy steal plates to the frame rails which is another option.
Running the bar through the back window complicates things with the window but it allows me to tie the roll bar to the roof hinge then back to the wheel wells which is also reinforced.
The back of the car is kind of like a card board box without a lid so this is very helpful to chassis stiffness.
