Originally Posted by
Adobedude
Just made that swap...Dropped 5 tenths the fist time down the track, but I was coming from a very good 46RE. I know I have room for improvement with the 727.
You'll need a longer drive shaft, and a different tranny mount, and you will have to notch the trans case for the Crank trigger, and get the auto flashed out of the PCM...CELs will still be your friend.
For strip, with limited street, do it. But the 4.56 gears and a 3 speed gonna get old if you spend much time over 60 mph.