Overhaul Procedure Steps

NOTE: This article lists the sequential steps necessary to overhaul the transmission.
^ For the specific step listed below, refer to that step under "Repair Instructions". Repair Instructions




1. Lift Plate and Holding Fixture Installation
2. Torque Converter Removal
3. Control Valve Body Assembly Removal
4. Input and Output Speed Sensor Removal
5. Torque Converter Housing with Fluid Pump Assembly Removal (Non Hybrid)
6. Differential Carrier Removal (6T40/45/50)
7. Differential Carrier Removal (6T30)
8. Drive and Driven Sprocket, Drive Link, and Park Pawl Removal (6T40/45/50)
9. Drive and Driven Sprocket, Drive Link, and Park Pawl Removal (6T30)
10. Internal Components Removal
11. 2-6 Clutch Piston Removal
12. Manual Shift Detent Lever with Shaft Position Switch Assembly and Park Pawl Actuator Removal
13. Manual Shift Shaft Seal Removal
14. Input Shaft Support Replacement (Gen 1)
15. Input Shaft Support Replacement (Gen 2)
16. 3-5-Reverse and 4-5-6 Clutch Fluid Seal Ring Replacement (Gen 1)
17. 3-5-Reverse and 4-5-6 Clutch Fluid Seal Ring Replacement (Gen 2)
18. Front Wheel Drive Shaft Seal Replacement - Case Side
19. Transmission Case Cleaning and Inspection
20. Manual Shift Detent Lever with Shaft Position Switch Assembly and Park Pawl Actuator Installation
21. Manual Shift Shaft Seal Installation
22. 2-6 Clutch Piston Installation (6T40/45/50)
23. 2-6 Clutch Piston Installation (6T30)
24. Low and Reverse and 1-2-3-4 Clutch Housing, Low and Reverse Clutch Assembly, Output Sun Gear, and 2-6 Clutch Plate Disassemble (Gen 1)
25. Low and Reverse and 1-2-3-4 Clutch Housing, Low and Reverse Clutch Assembly, Output Sun Gear, and 2-6 Clutch Plate Disassemble (Gen 2)
26. Input, Reaction, and Output Carrier Disassemble
27. 3-5-Reverse and 4-5-6 Clutch Housing Disassemble (6T30/40/45/50 - Gen 1)
28. 3-5-Reverse and 4-5-6 Clutch Housing Disassemble (6T30/40/45/50 - Gen 2)
29. 3-5-Reverse and 4-5-6 Clutch Housing Assemble (6T30/40/45/50 - Gen 1)
30. 3-5-Reverse and 4-5-6 Clutch Housing Assemble (6T30/40/45/50 - Gen 2)
31. Input, Reaction, and Output Carrier Assemble (Gen 1)
32. Input, Reaction, and Output Carrier Assemble (Gen 2)
33. 3-5-Reverse and 4-5-6 Clutch Housing, and Input, Reaction, and Output Carrier Installation
34. Low and Reverse Clutch Assembly and Low and Reverse Clutch Plate Installation
35. Low and Reverse and 1-2-3-4 Clutch Housing Disassemble
36. Low and Reverse and 1-2-3-4 Clutch Housing Cleaning and Inspection
37. Low and Reverse and 1-2-3-4 Clutch Housing Assemble (6T40/45/50)
38. Low and Reverse and 1-2-3-4 Clutch Housing Assemble (6T30)
39. Low and Reverse and 1-2-3-4 Clutch Housing, and 1-2-3-4 Clutch Plate Installation (6T40/45/50)
40. Low and Reverse and 1-2-3-4 Clutch Housing, and 1-2-3-4 Clutch Plate Installation (6T30)
41. Drive Sprocket, Driven Sprocket, and Drive Link Cleaning and Inspection
42. Drive and Driven Sprocket, Drive Link, and Park Pawl Installation (6T40/45/50)
43. Drive and Driven Sprocket, Drive Link, and Park Pawl Installation (6T30)
44. Front Differential Carrier Cleaning and Inspection
45. Front Differential Carrier Installation (6T40/45/50)
46. Front Differential Carrier Installation (6T30)
47. Transmission Fluid Pump, Front Differential Carrier Baffle, and Front Differential Ring Gear Removal (6T40/45)
48. Transmission Fluid Pump, Front Differential Carrier Baffle, and Front Differential Ring Gear Removal (6T30)
49. Front Wheel Drive Shaft Seal Replacement - Torque Converter Housing Side
50. Torque Converter Housing Cleaning and Inspection
51. Transmission Fluid Pump Disassemble (6T40/45/50)
52. Transmission Fluid Pump Disassemble (6T30)
53. Fluid Pump Selective Measurement
54. Transmission Fluid Pump Assemble (6T40/45/50)
55. Transmission Fluid Pump Assemble (6T30)
56. Transmission Fluid Pump, Front Differential Carrier Baffle, and Front Differential Ring Gear Installation (6T40/45)
57. Transmission Fluid Pump, Front Differential Carrier Baffle, and Front Differential Ring Gear Installation (6T30)
58. Torque Converter Housing with Fluid Pump Assembly Installation (6T40/6T45/6T50 Non Hybrid)
59. Torque Converter Housing with Fluid Pump Assembly Installation (6T30)
60. Input and Output Speed Sensor Installation
61. Control Valve Body Assembly Disassemble (Gen 1)
62. Control Valve Body Assembly Disassemble (Gen 2)
63. Control Valve Body Cleaning and Inspection (Gen 1)
64. Control Valve Body Cleaning and Inspection (Gen 2)
65. Control Valve Channel Plate Cleaning and Inspection (6T30/40/45/50 - Gen 1)
66. Control Valve Channel Plate Cleaning and Inspection (6T30/40/45/50 - Gen 2)
67. Control Valve Body Assembly Assemble (Gen 1)
68. Control Valve Body Assembly Assemble (Gen 2)
69. Control Valve Body Assembly Installation
70. Control Solenoid Valve and Transmission Control Module Assembly Installation
71. Control Valve Body Cover Installation
72. Torque Converter Fluid Seal Replacement
73. Torque Converter Installation
74. Lift Plate and Holding Fixture Removal