Hey I came across this old thread, and it said you swapped a 3-speed manual for a 727, what car was it in? And were you able to use your original drive shaft, I want to swap my 66 from a three tree to an automatic, with a floor shifter , I was going to go with a 4 Speed originally but I'm just getting too old to be driving a stick especially in parades which I do a lot, it sucks pushing in the clutch pedal and releasing it 5,000 times in a 45 minute time period going 3 mph LOL, I've done a ton of motor / trans swaps before, but never a manual to an automatic, I know I need the flex plate and small hub converter, and a b/e transmission or at least the tail shaft, and a trans cooler , I was just wondering the trans were the same length and I could use the original driveshaft or if I'll have to find one somewhere, thanks