Part 1

A750E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION UNIT: DISASSEMBLY

DISASSEMBLY

1. REMOVE TRANSMISSION CONTROL SHAFT LEVER RH

(a) Remove the nut, spring washer and control shaft lever RH.
2. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Using a screwdriver, bend the tabs of the lock washer.
(b) Remove the nut, lock washer and bolt.
(c) Remove the park/neutral position switch.
3. REMOVE OIL COOLER TUBE UNION

(a) Remove the 2 oil cooler tube unions.
(b) Remove the 2 O-rings from each oil cooler tube union.
4. REMOVE SPEED SENSOR

(a) Remove the 2 bolts and 2 speed sensors.
(b) Remove the 2 O-rings from each sensor.
5. REMOVE AUTOMATIC TRANSMISSION BREATHER TUBE

(a) Remove the 2 bolts.
(b) Remove the breather tube.
(c) Remove the O-ring from the tube.
6. REMOVE AUTOMATIC TRANSMISSION HOUSING

(a) Remove the 10 bolts.
(b) Remove the transmission housing.
7. REMOVE EXTENSION HOUSING SUB-ASSEMBLY

(a) Remove the 6 bolts.
(b) Remove the extension housing.
HINT: Use a brass bar and hammer to remove the extension housing.

(c) Using a snap ring expander, remove the snap ring.
(d) Remove the thrust needle roller bearing and 2 bearing races.
8. REMOVE EXTENSION HOUSING DUST DEFLECTOR

(a) Using a brass bar and hammer, tap out the dust deflector.
9. REMOVE AUTOMATIC TRANSMISSION EXTENSION HOUSING OIL SEAL

(a) Using SST, tap out the oil seal.
SST: 09308-00010
10. FIX AUTOMATIC TRANSMISSION CASE SUB-ASSEMBLY

(a) Install the transmission case on the overhaul attachment.
11. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY
NOTE: Do not turn the transmission over as this will contaminate the valve body with foreign matter on the bottom of the pan.

(a) Remove the drain plug and 20 bolts.
12. INSPECT AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY Transmission Unit
13. REMOVE VALVE BODY OIL STRAINER ASSEMBLY

(a) Turn over the transmission.
(b) Remove the 4 bolts and oil strainer from the valve body.
(c) Remove the O-ring from the oil strainer.
14. REMOVE TRANSMISSION WIRE

(a) Remove the 2 bolts and 2 clamps, and disconnect the ATF temperature sensor.
(b) Disconnect the 7 connectors from the shift solenoid valves.

(c) Remove the bolt from the case.
(d) Pull the transmission wire out of the transmission case.
(e) Remove the O-ring from the transmission wire.
15. REMOVE TRANSMISSION VALVE BODY ASSEMBLY
(a) Remove the bolt, detent spring cover and detent spring.

(b) Remove the 19 bolts.
(c) Remove the valve body assembly.
16. REMOVE TRANSMISSION CASE GASKET

(a) Remove the 3 gaskets.
17. REMOVE BRAKE DRUM GASKET

(a) Remove the 3 gaskets.
18. REMOVE CHECK BALL BODY

(a) Remove the check ball body and spring.
19. REMOVE C-2 ACCUMULATOR PISTON

(a) While applying compressed air to the oil hole, remove the C2 accumulator piston and spring.
(b) Remove the 2 O-rings from the piston.
NOTE: Be careful as the C-3 and B-3 accumulator pistons may jump out.

20. REMOVE B-3 ACCUMULATOR PISTON

(a) While applying compressed air to the oil hole, remove the B3 accumulator piston and spring.
(b) Remove the 2 O-rings from the piston.
NOTE: Be careful as the C-3 accumulator piston may jump out.

21. REMOVE C-3 ACCUMULATOR PISTON

(a) While applying compressed air to the oil hole, remove the C3 accumulator piston and 2 springs.
(b) Remove the 2 O-rings from the piston.
22. REMOVE C-1 ACCUMULATOR VALVE

(a) Remove the C-1 accumulator valve and 2 springs.
23. REMOVE PARKING LOCK PAWL BRACKET

(a) Remove the 3 bolts and bracket.
24. REMOVE PARKING LOCK ROD SUB-ASSEMBLY

(a) Disconnect the parking lock rod from the manual valve lever.
25. REMOVE PARKING LOCK PAWL SHAFT

(a) Pull out the parking lock pawl shaft from the front side, and then remove the lock pawl and spring.
(b) Remove the E-ring from the shaft.
26. REMOVE MANUAL VALVE LEVER SUB-ASSEMBLY

(a) Using a hammer and screwdriver, cut off the spacer and remove it from the shaft.

(b) Using a pin punch and hammer, tap out the spring pin.
HINT: Slowly drive out the spring pin so that it does not fall into the transmission case.

(c) Pull the manual valve lever shaft out through the case, and remove the manual valve lever.
27. REMOVE MANUAL VALVE LEVER SHAFT OIL SEAL

(a) Using a screwdriver, pry out the 2 oil seals.
NOTE: Be careful not to damage the transmission case. Wrap the tip of the screwdriver with tape.

28. REMOVE OIL PUMP ASSEMBLY

(a) Remove the 10 bolts.

(b) Using SST, remove the oil pump.
SST: 09350-30020
09350-07020

(a) Remove the clutch drum and input shaft drum assembly from the transmission case.

(b) Remove the clutch drum thrust washer and thrust needle roller bearing.
30. REMOVE NO. 2 1-WAY CLUTCH ASSEMBLY

(a) Remove the No. 2 1-way clutch and clutch drum thrust washer from the clutch drum and input shaft assembly.
31. FIX CLUTCH DRUM AND INPUT SHAFT ASSEMBLY

(a) Place the oil pump onto the torque converter clutch, and then place the clutch drum and input shaft assembly onto the oil pump.
32. REMOVE REVERSE CLUTCH HUB SUB-ASSEMBLY

(a) Using a screwdriver, remove the snap ring.

(b) Remove the reverse clutch hub sub-assembly, reverse clutch reaction sleeve, clutch cushion, plate reverse clutch flange, 5 reverse clutch discs and 4 clutch plates from the clutch drum.
33. REMOVE REVERSE CLUTCH REACTION SLEEVE

(a) Remove the reverse clutch reaction sleeve from the reverse clutch hub.
34. REMOVE REAR CLUTCH DISC

(a) Remove the clutch cushion plate, reverse clutch flange, 5 discs and 4 plates from the reverse clutch hub.
35. INSPECT REAR CLUTCH DISC Transmission Unit
36. INSPECT REVERSE CLUTCH HUB SUB-ASSEMBLY Transmission Unit
37. REMOVE FORWARD CLUTCH HUB SUB-ASSEMBLY

(a) Remove the forward clutch hub from the clutch drum.

(b) Remove the 2 thrust needle roller bearings from the forward clutch hub.
38. INSPECT FORWARD CLUTCH HUB SUB-ASSEMBLY Transmission Unit
39. REMOVE MULTIPLE DISC CLUTCH HUB

(a) Remove the multiple disc clutch hub from the clutch drum.

(b) Remove the No. 2 thrust bearing race and input shaft thrust bearing race rear from the multiple disc clutch hub.
40. REMOVE INPUT SHAFT ASSEMBLY

(a) Remove the thrust needle roller bearing from the clutch drum.

(b) Remove the input shaft assembly from the clutch drum.
41. REMOVE INPUT SHAFT OIL SEAL RING

(a) Remove the 3 oil seal rings from the input shaft.
42. REMOVE FORWARD MULTIPLE DISC CLUTCH DISC

(a) Using a screwdriver, remove the hole snap ring.

(b) for 1GR-FE:
Remove the 2 flanges, 6 discs and 5 plates from the input shaft.

(c) for 2UZ-FE:
Remove the 2 flanges, 7 discs and 6 plates from the input shaft.
43. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC Transmission Unit
44. REMOVE NO. 1 CLUTCH BALANCER

(a) Place SST on the clutch balancer, and compress the return spring with a press.
SST: 09350-30020
09350-07040
09350-07070
(b) Using a snap ring expander, remove the snap ring.

(d) Remove the O-ring from the No. 1 clutch balancer.