Quote Originally Posted by RayDav View Post
Then I guess I will stick with making an E4OD work.

I have three of what I call "dynamometers": Cajon pass, !15, CA which is near me, Baker Grade, I15, CA which is on the road to Vegas, and Eisenhower Summit, I70, CO - 11,000 ft. I am attempting to build two cars - 73 Mach 1 and 55 Ford wagon - with the ability to keep up with trafic as tho the trailer was not there. The 73 has a well built, EFI 532. The 55 wagon has an even better built 604 twin turbo. I cannot afford to skimp on the trans.
LOL on the "dynamometers"!

My experience was my '90 F150, going to pick up my '33 Roller and with an empty trailer it started dropping out of OD. Down at N&N Duane mentioned that the AODE had an OD Band, and it wasn't for towing. We went home in "D" and it was fine, and it didn't "cook" the OD band because it worked fine unloaded until I sold it.
I'm no tranny guy, so I'd probably call someone like Monster Transmissions and see what they recommend, but you may be well past needing that kind of info. I appreciate you coming back with more info. That's what makes these places work.