Reverse Clutch Housing and Second Sprag Assemble

Tools Required

• J 39694  Spring Compressor. See Special Tools .
• J 39054  Reverse Clutch Seal Protector. See Special Tools .

Fig 1: Identifying Inspection Areas On Reverse Clutch Housing
Courtesy of GENERAL MOTORS CORP.
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 CORP.
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 CORP.
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
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7. Inspect the reverse clutch housing bushings (502, 503) for damage.
Fig 5: View Of Spring And Retainer Assembly
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8. Inspect the spring and retainer assembly (508) for damaged or missing springs.
Fig 6: Identifying Second Sprag & Races For Wear
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9. Inspect the second sprag (517) for flipped or damaged sprags. Inspect both of the second sprag races for damage.
Fig 7: Identifying Reverse Piston Seals
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10. Install new seals (506, 507) on the reverse piston (505).
Fig 8: Installing The Reverse Clutch Piston (505) Into The Reverse Clutch Housing Using J 39054
Courtesy of GENERAL MOTORS CORP.
11. Install the reverse clutch piston (505) into the reverse clutch housing. Install the J 39054  in order to protect the inner seal. See Special Tools . 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: Locating Spring And Retainer Assembly Into The Reverse Clutch Housing
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12. Install the spring and retainer assembly (508, 509) into the reverse clutch housing (500).
Fig 10: Compressing The Spring And Retainer Assembly Using J 39694
Courtesy of GENERAL MOTORS CORP.
13. Use the J 39694  spring compressor to compress the spring and install the snap ring (510). See Special Tools . Remove the compressor tool.
Fig 11: View Of Reverse Clutch Plates
Courtesy of GENERAL MOTORS CORP.
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: Identifying 2nd Sprag Race And Clutch Assembly
Courtesy of GENERAL MOTORS CORP.
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 CORP.
16. Verify that the second sprag freewheels only in a clockwise direction.
Fig 14: Identifying Sprag Clutch Retainer
Courtesy of GENERAL MOTORS CORP.
17. Install the sprag clutch retainer (518).
Fig 15: Locating Spiral Snap Ring
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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.