Forward and Coast Clutch Disassemble

Special Tools 

J 43074:  Forward Clutch Piston Spring Compressor

For equivalent regional tools, refer to Special Tools .

Fig 1: Identifying Forward Clutch Plates
Courtesy of GENERAL MOTORS CORP.
1. Remove the forward clutch backing plate retainer ring (451).
2. Remove the forward clutch backing plate (450).
3. Remove the forward clutch plates (448, 449). Refer to Clutch Plate Selection Specifications .
4. Remove the forward apply plate (447).
Fig 2: Identifying Coast Clutch Components
Courtesy of GENERAL MOTORS CORP.
5. Remove the coast clutch housing (446).
6. Remove the coast backing plate (445).
7. Remove the coast clutch plates (443, 444). Refer to Clutch Plate Selection Specifications .
8. Remove the coast apply plate (442).
9. Remove the coast clutch spacer plate (441).
Fig 3: Compressing Forward & Coast Clutch Spring
Courtesy of GENERAL MOTORS CORP.
10. Use the J 43074:  spring compressor to compress the forward and coast clutch spring (439).
11. Remove the retainer ring (440).
12. Remove J 43074:  spring compressor.
13. Remove the clutch spring (439).
Fig 4: Identifying Forward & Coast Clutch Pistons
Courtesy of GENERAL MOTORS CORP.
NOTE: It may be necessary to apply air pressure to remove the piston.
14. Remove the coast clutch piston (438).
15. Remove the forward clutch piston (436).
Fig 5: Identifying Input Shaft Fluid Seals
Courtesy of GENERAL MOTORS CORP.
16. Remove the input shaft fluid seal (431).
17. Remove the input shaft fluid seals (432).