The TH700 conversion is only worthwhile if you have a tall diff ratio (3.08 or taller) & an engine which has plenty of torque below 2,000 RPM.

It's no good with a low diff or a cammy engine which makes all it's torque above 3,000 RPM.

I've got one in my HZ One-Tonner behind a stock VN 5.0 V8 & it's waaaay better than the old 308 & TH400 set-up.

Dr Terry