I have been working on jwibbity's beautiful supercharged silver Marauder for the last couple of weeks.
He brought the car to me saying the tranmission was shifting "funny", read here; http://www.mercurymarauder.net/forum...ad.php?t=91968. On the test drive the 2-3 shift would flare slightly, then slide into 3rd gear and overall the shifts were not crisp and consistent.
I am told the transmission was rebuilt previously by another transmission shop, 2-3 yrs ago.
During tear down, I found no major damage. There was evidence the valve body had a TransGo kit install at one time but appeared it had been removed by the previous shop that rebuilt the transmission recently. The valve body already had the improved Sonnax pressure regulator valve and it had a superior "Tuff" plate, separator plate installed. I also found the o-rings for the
shift solenoid were worn and one was cut.
The Forward clutches were slightly worn and discolored and appeared to have been machined improperly when then were manufactured. The grooving was cut all the way down to the metal, this is not normal.
I did a full rebuild with new clutches, seals and gaskets. One of my normal upgrades on these transmissions is to remove the wave spring from the forward clutch and increase the clutch pack to 6 clutches. I also upgraded the intermediate shaft to a stronger one made out of 300m and upgraded the mechanical diode one way clutch to a newer, factory part that has more locking teeth.