Quote Originally Posted by MadMax
As for the lockup, my TC only locks up in OD, and it does seem to do so, but as soon as I get onto the gas just a little harder it slips again and doesn't accelerate as fast as I think it should do... I know a TC has some slip, but maybe I'm also wishing for too much in a 5000 pound car My TC has a very low stall speed, around 1500....
u know what Max, it sounds more and more like a loose faulty converter.

Quote Originally Posted by MadMax
and possibly the first compression of a new clutch might squeeze it just a little bit, too). I just hope that's not true, I don't fancy taking out a $ 2000 trans and spend a whole weekend to change a $ 1 washer....
I can't see that being the case.


Quote Originally Posted by MadMax
Maybe I should just pull it out and check clearances anyway...
If you checked your clearances even with the frictions dripping in oil, they will be fine.

Quote Originally Posted by MadMax
my shifts, they're definitely nice and firm, I can get them to really jerk the vehicle by shortening the TV cable a bit (just for tests ) But just after the shifts it feels sloppy again. ...
*cough* torque converter.


Quote Originally Posted by MadMax
So when I accelerate it jerks at shifts and then only accelerates slowly, but with high engine RPM. It's definitely not a weak engine ...
**cough** tc

Quote Originally Posted by MadMax
A friend of mine has a pickup (only a bit lighter than my van) with a 400hp SBC in it, also with a 700 trans and it pulls quite a bit better. Just makes me wonder...
***cough***

If the clutches or band were slipping, they get progessively worse as the days go by, not weeks or months. It happens quickly and the oil would be burnt. Do you happen to have another TC laying around which you could try? That would be a whole lot less work.