Reverse Clutch Housing and Second Sprag Assemble

Special Tools

• J 39694  Spring Compressor
• J 39054  Reverse Clutch Seal Protector

For equivalent regional tools, refer to Special Tools .

Fig 1: Identifying Inspection Areas On Reverse Clutch Housing
Courtesy of GENERAL MOTORS COMPANY
1. Inspect the reverse clutch housing (500) for the following:
   • Plugged feed holes
   • Snap ring for overexpansion
   • Outer surface for scoring or burning
   • Reverse clutch housing checkball for damage, the checkball should move freely in the capsule.
Fig 2: View Of Reverse Plates Inspection Areas
Courtesy of GENERAL MOTORS COMPANY
2. Inspect the reverse clutch steel plates (511), the backing plate (512) and the waved plate (514) for scoring or burning.
3. Inspect the snap ring (510) for overexpansion.
4. Replace all of the fiber clutch plate assemblies (513).
Fig 3: Locating Reverse Clutch Piston Inner & Outer Seal Damage
Courtesy of GENERAL MOTORS COMPANY
5. Inspect the reverse clutch piston inner seal (506) and outer seal (507) for damage.
6. Inspect the checkball orifices on the reverse clutch piston assembly (505) for damage caused by peening. The checkball should move freely in the piston capsule.
Fig 4: Inspecting Reverse Clutch Housing Bushings
Courtesy of GENERAL MOTORS COMPANY
7. Inspect the reverse clutch housing bushings (502, 503) for damage.
Fig 5: View Of Spring And Retainer Assembly
Courtesy of GENERAL MOTORS COMPANY
8. Inspect the spring and retainer assembly (508) for damaged or missing springs.
Fig 6: Identifying Second Sprag & Races For Wear
Courtesy of GENERAL MOTORS COMPANY
9. Inspect the second sprag (517) for flipped or damaged sprags. Inspect both of the second sprag races for damage.
Fig 7: Installing Reverse Piston Seals
Courtesy of GENERAL MOTORS COMPANY
10. Install new seals (506, 507) on the reverse piston (505).
Fig 8: Reverse Clutch Piston, Housing & Seal Protector
Courtesy of GENERAL MOTORS COMPANY
11. Install the reverse clutch piston (505) into the reverse clutch housing. Install the J 39054  seal protector in order to protect the inner seal. Make sure that the outer seal does not roll backwards. Apply a light coating of Transjel™ so that the seal will slide easily.
Fig 9: Spring & Retainer Assembly
Courtesy of GENERAL MOTORS COMPANY
12. Install the spring and retainer assembly (508, 509) into the reverse clutch housing (500).
Fig 10: Compressing The Spring And Retainer Assembly
Courtesy of GENERAL MOTORS COMPANY
13. Use the J 39694  spring compressor to compress the spring and install the snap ring (510). Remove the compressor tool.
Fig 11: View Of Reverse Clutch Plates
Courtesy of GENERAL MOTORS COMPANY
14. Install the following parts:
    1. The waved plate (514). Align the waved plate tangs with the inserts in the reverse clutch piston.
    2. The two steel (511) and the two fiber (513) clutch plates, starting with steel and alternating with fiber
    3. The apply plate (512) with the stepped side up
    4. The snap ring (515)
Fig 12: Installing 2nd Sprag Race And Clutch Assembly
Courtesy of GENERAL MOTORS COMPANY
15. Install the following parts:
    1. The 2nd clutch outer race thrust washer (520)
    2. The 2nd sprag clutch assembly (517) into the 2nd sprag outer race (516)
    3. The 2nd sprag race and clutch assembly onto the reverse clutch housing (500)
Fig 13: Checking Second Sprag Freewheel
Courtesy of GENERAL MOTORS COMPANY
16. Verify that the second sprag freewheels only in a clockwise direction.
Fig 14: Identifying Sprag Clutch Retainer
Courtesy of GENERAL MOTORS COMPANY
17. Install the sprag clutch retainer (518).
Fig 15: Locating Spiral Snap Ring
Courtesy of GENERAL MOTORS COMPANY
18. Install the new spiral snap ring (519). Verify that the spiral snap ring tabs lock into place and that the snap ring is properly seated.