u/Briggs281707

I've pulled the trans and the pan now, no obvious sign of debris or anything else bad. I tested pressure before taking it out, made 80 psi in neutral and 120 in gear, so not a pump problem.

The fluid itself is a little dark, but nothing to bad I would think. The trans was rebuild by the guy before the previous owner and there was an old planetary set and a sprag assembly on the Flor when I bought the truck, so it checks out.

I am leaning towards a torque converter issue

So here i was with my foot in it. At 3500 i loose drive and the 6.2 goes to fuel cut.

After stopping I can rev it and it will move a tiny bit and there is a whine. I would think it is a torque converter rather than a pump, but not sure. Fluid doesn't small burnt and it was shifting perfect all day.

I'll put a pressure gauge on it tomorrow, but would like input what it typically is.

I really don't want to build another 700r4/4l60