Based on my other thread, it is also suspected to be the input clutch piston seal. Based on the article that was posted, it sounds like that'* exactly what the problem is, word for word, and explains why increasing line pressure would alleviate the problem.

Yep, I saw that post after I posted that last post. Once you have the bottom pan off then you can take the forward band piston cover off. Just remember you will need a small pry bar to hold the cover back as you remove the bolts. It'* not under a lot of pressure, but still some.

What is the forward band piston? How is that different from the input clutch piston?

LOL, so which thread are we diagnosing what in ??? (sorry..had to)

The input piston is inside the input/3rd gear housing in the middle of the trans in the leg. The fwd servo is a small piston like deal that pushes on the fwd band to engage it. It'* behind a cover that'* on the backside of the trans.

Crap..put the trans pic with the servo cover in the other thread. Sorry guys.

here it is

Ok guys you're going to have to slow down a little bit. How do I know if that FWD servo is bad?

Well..you take a trans fluid bath, swear a lot (cause it'* up in there where the sun can't shine) and do your best to find a tear in the seal or something goofy.

We can't slow down.. we are supercharged!

Ya, what he said, we only have one speed, keep up.

And can that seal be replaced from the bottom side of the pan, or does the side cover have to come off?

Which seal? Come on pokey...keep up.