Mike,

Let me preface that I am not the expert here, but i did read a ton of info here, emailed a few guys, and got my shifts oh so silky smooth

Did they change out the trans filter? Hopefully so. And did this occur all of a sudden after the fluid change? Meaning, were your shifts silky smooth before the change?

I'm not familiar w/ the vac system in 82s, but the principles below will probably be the same:


- what is the vac reading on the line that goes to the transmission modulator? If you have rough, harsh shifts, see if increasing the vac to the trans modulator helps. You can increase it from the VCV or the blue ufo (if you have one). The other option is to turn the modulator CCW to soften the shifts. but if it shifts that hard, try the first two options.

- Check out dieselgiant.com's website. I recall he has a good page on transmission reconditioning.

- there's a very, very long but informative thread here called "It's Critical..." by Samuel Ross. Takes a while to get through it, but its well worth the read. Jeremy wrote a really good summary on page 9 or 10 which describes how the vac system works. I distincly remember reading something he wrote about how when the engine temp is below normal operating temperature, the coolant temp gauge turns the VCV (hopefully i'm remembering this right) vac off so that more vac will be received from another device. So if that is the case, then you would want to make sure that the 2nd device (sorry, drawing a blank on the name of the device) has a high enough vac to soften your shifts.

Bob