NHRA tech answer. Can anybody here put this in english....
Steel-bodied pickup trucks (7.50 seconds and slower), roll cages
are permitted with no back braces if the roll cage satisfies SFI
25.1E, 25.2, 25.4, or the roll cage consists of a 4-point (door car)
cage with a complete SFI 2.4B, 2.5B, 2.6, 2.7A dragster, SFI 10.2,
10.3 altered, or SFI 10.4 street roadster roll cage/driver’s
compartment incorporated into and attached to the 4-point roll
cage. An upper windshield bar is mandatory.
Non-steel-bodied pickup trucks (7.50 seconds and slower), roll
cages are permitted with no back braces if the roll cage satisfies
SFI 25.1E, 25.2, 25.4, or the roll cage satisfies the requirements for
SFI 2.4B, 2.5B, 2.6, 2.7A dragster, SFI 10.2, 10.3 altered, or SFI
10.4 street roadster roll cage/driver’s compartment. No 4-point
(door car) cage is required and no upper windshield bar is required.
In which you will need to contact SFI @ 858-451-8858 for the above chassis specs