Talked to my transmission guy-------

I drove a nice 727 with a gear vendors behind it. I tried to use it to split the gears while at full throttle. It's just not practical. The Gear Vendors would not shift unless you lifted the throttle slightly. Then you would have to shift it back down while upshifting into the next gear and then back up again and repeat. I'm sure some guy could do it after practicing long enough, but as far as making the car quicker. Not! The car was quicker and pulled harder using the 727 alone and then clicking it into overdrive at the end.

Top that off with the disappointing ratio of overdrive you get for all that money and driveline angle adjustment, and it's nothing I would ever want in one of my cars. A four speed automatic with lock-up converter of your choice is the only way to go. The lock-up used with a properly set-up, higher stall converter is the closet thing to a 5 speed automatic you can bolt into a Mopar at this time.