was that ? for me? if so yes they do but i need to stop racing it until i get one put in. also for got when i ran the 10.68 i was running 4.10 gears but blew them up on the 5 pass so have installed 4.30 gears now. nice car you have. also i am wanting to build the 73 duster i bought a while back so i will probly have the roll bar put in the 73 duster. mopar65