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Yes, the solution to my problem was replacing the valve body. If you are having problems similar to mine, replace the valve body before you do anything else. Do not buy a used valve body as they all seem to have the same problems. I bought a remanufactured valve body from Valve Body Express...

Another, and final update.. I thought about why it was shifting so hard and figured the computer had jacked the line pressure sky-high trying to compensate for the slipping that was occurring before.. So, I got a scanner, went into the computer and deleted the KAM, putting it back to default...

Correct-I was specifically referring to any Ford vehicle equipped with the 5r55 unit. Ford does make some good transmissions but the 55 is not one of them. The new 6 speed units seem to be getting good reviews so far. Only time will tell if they can make it to the 200K mile mark though...

Just wanted to follow up and let everyone know I found the solution. I ended up replacing the transmission case-even though I could not see or detect any wear at the servo bores, and even measured them with an inside mic and could not find any wear I wanted to eliminate the case as the source of...

Already have the ATSG manual and it is of very little use when diagnosing problems such as this. Putting the Superior shift kit thermostat by-pass in today. Thought I would have that done by now but had to order it.

I did not used a bonded gasket separator plate-I used the standard gaskets from the over-haul kit. The used valve body had it's own EPC already installed & I changed it as a complete assembly. Yes, the valve body was torqued in sequence starting in the center out using an inch/lb. torque...

I have a 2005 Explorer Sport Trac With 4.0L Engine & 5r55E. I was having problems with the trans intermittently losing reverse when hot, and flaring on the 2-3 shift. I pulled the trans to rebuild it and find that NOTHING inside the trans is burned, or damaged. I completely rebuilt the...