I have the AF rollbar and have been "TRYING" to install it for last 2 nights.
My big knock is there are practically zero instructions. Its NOT a bolt-on.
I've had to sawsall fiberglass from the top of the bulkhead, grind down flat
the whole area, drill out holes to fit. A real Pain in the A**. On the positive side Jerry at AF has been helpful when I call. I would check out BTR and get a copy of instructions to see what your dealing with. AF says there looking into redoing there instructions. I have documented my experience and have many pics if anyone need them.
Good Luck,
Fast Eddie