Truck Cage for Challenge

I am Building a 1990 Toyota PU for the 2010 Challenge. I need to know if I can run a roll cage in it. BUT for a truck cage to work I will need to pierce the cab to go to the back of the frame. I had heard that cages could not go outside of the body. If this is the case a cage would be worthless without the rear bars. Any help you could provide would be great. It is powered by a Supercharged V-6 I will need something. Thanks

That's fine. have fun!

Per

Thanks very much, As soon as I Get it under power I will send in my registration In reply to Per Schroeder: