OK, so this might be a stupid question, but do you 4spd guys use 4th gear at the track? (1/4 mile) I've never run this car at the track (no roll bar). I'm looking at the two Passon overdrive transmissions (4spd & 5spd). I'm leaning towards the 4spd version (really a 3spd with O/D in the 4th gear location), but I don't want to give up my 4th gear if I need it since I'm still going back & forth about putting in a roll bar. My car is 99% street driven with 3.91's and 26" tall tires so it's SCREAMING at 70mph and I need to do something about it.