Has anyone done this?
Is it possible?
Would we need a Mustang computer?
Could we do it another way?
Would the crossmember lineup?
Do we need a different slip yoke?
The first gear ratio is MUCH better than ours, 3.21 v 2.84. With a 3.73 rear gear, you get more than a 4.10 equivalent, you get like 4.30s!
Also, the RPM drop on 1-2 in the 4R70W is 50%. 50%! That means if you shift at 6000 RPM, your input shaft speed want to go to 3000 RPM (converter notwithstanding) On the 5R55S, the drop is nearly half that
PI MAKES A CONVERTER FOR THEM, TOO! I know it's not on the website, but I called them, and they said, yes, they do (same price).
I was thinking I would go with a T-56 like Master did (which is the ultimate), but my wife drives this, and I think I want to keep it more of an easy cruiser...
I know someone is going to mention the '55' vs the '70' in the name, which implies that it handles a lot less power, but I know for a fact that these things are standing up to A LOT of horsepower in supercharged configurations, and surviving just fine. I don't know how Ford got the '55', but durability S/C'd doesn't seem to be a problem, MUCH LESS N/A'd.
I like the idea a lot.
What say you?
fastcar