I am a new comer to this website ... but am pretty active on the Ford Truck Enthusiast website because my son and I have spent the last year rebuilding a '51 Ford F1 pickup truck.

I was doing some searching about transmissions and found this thread that looks like there are some pretty heavy hitters about transmissions.

At some point in the F1's past, a '68 289 V8 from a Cougar was installed with what we now believe to be an '85 AOD transmission.

We have finished the rewiring now and while we had it in down we changed the transmission fluid and filter ... it was shifing good last time we drove it last summer, but now, after the rewire and filter change we test drove it down the street and it takes a long time to shift into gear (forward and reverse both) and doesn't want to shift up when it seems like it should.

From my memory, there is no vacuum modulator valve on the transmission. There is a three-wire connetor coming out of the left side o the transmission and it has a 14-bolt pan that says "metric".

I think I am looking for advice on "setting the pressure" and anything else I can do to make sure the transmission will work properly and reliabley.

Any thoughts, comments or simply pointing me in the direction of some manuals would be greatly appreciated!

Regards, Richard