Remove Transmission Valve Body Assembly:
Shift transmission into neutral.
Raise vehicle on an appropriate hoist
Position a drain pan under the transmission oil pan.
Remove the transmission oil pan and gasket.
Remove the three screws that secure the fluid filter to the valve body and remove the filter.
Remove the bolts that attach the valve body to the transmission case.
Lower the valve body enough to remove the accumulator piston and springs.
Work the manual lever shaft and electrical connector out of the transmission case.
Lower the valve body, then rotate the valve body away from the case, pull the park rod out of the sprag and then remove the valve body
Reinstall
2. Check condition of the manual lever shaft seal in the transmission case. Replace the seal if the lip is cut or worn.
3. Check the condition of the seals on the accumulator piston. Install new seals if necessary.
4. Place the valve body manual lever in the low (1 position) so that the ball on the park lock sprag will be easier to install in the sprag.
5. Lubricate the shaft of the manual lever with petroleum jelly.
6. Lubricate the seal rings on the valve body harness connector with petroleum jelly.
7. Position the valve body in the case and work the end of the park lock rod into and through the pawl sprag. Turn the propeller shaft to align the sprag and park lock teeth if necessary. The rod will click as it enters the pawl. Move the rod to check engagement.
CAUTION: It is possible for the park rod to displace into a cavity just above the pawl sprag during installation. Make sure that the rod is actually engaged In the pawl and has not displaced into this cavity.
8. Install the accumulator springs and piston into the case. Then swing the valve body over the piston and outer spring to hold it in place.
9. Align the accumulator piston and outer spring, manual lever shaft and electrical connector in the case.
10. Seat the valve body in the case and install one or two bolts to hold it in place.
11. Install the remaining valve body bolts. Tighten the valve body bolts alternately and evenly to 100 in-lbs (11 N-m).
12. Install the fluid filter on the valve body. Tighten the filter screws to 35 in-lbs (4 NM).
