71 360 Demon New Personal Best

I doubt the driveshaft slowed you that much... that said, I'm ordering a 3.5" aluminum shaft tomorrow for $600 and some change. Every part/change I've done to the car since I've had it has leaned toward the lighter of whatever part I'm buying. "IF" you still ran 7290 joints I'd have just the chrome molly 3" shaft for you :)