REVERSE INPUT CLUTCH ASSEMBLE Tools Required

• J 23327-1 Forward Clutch Spring Compressor (Bridge). See Special Tools.

• J 25018-A Clutch Spring Compressor Adapter. See Special Tools.

• J 44571-1 Reverse Input Clutch Piston Installer. See Special Tools.

Assembly Procedure

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

607

Fig. 358: Locating Inspection Areas On Reverse Input Clutch Piston Courtesy of GENERAL MOTORS CORP.

1. Inspect the reverse input clutch piston (607) for the following:

• Damaged or porosity

• Ring groove damage

2. Install the reverse input clutch inner and outer seals (608) on the piston.

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 359: View Of J 44571-1

Courtesy of GENERAL MOTORS CORP.

3. Install the J 44571-1 inner (2) and outer (1) reverse input clutch piston installer. See Special Tools.

4. Install the piston (607 into the housing (605).

5. Remove the J 44571-1 . See Special Tools.

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 360: Identifying Reverse Input Clutch Spring Assembly Courtesy of GENERAL MOTORS CORP.

6. Inspect the reverse input clutch spring assembly (609) for bent, broken, distorted or damaged springs.

7. Install the reverse input clutch spring assembly (609).

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 361: View Of Reverse Input Clutch Spring Retainer Ring Courtesy of GENERAL MOTORS CORP.

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 362: Inspecting Plates For Damage Or Wear Courtesy of GENERAL MOTORS CORP.

9. Install the reverse input clutch spring retainer ring (610).

10. Inspect the belleville plate (611), the fiber plate assemblies (612B), the steel turbulator plates (612A) and the selective backing plate (613) for the following items:

• Damaged tangs

• Delamination

• Excessive wear

• Heat damage or wear

• Surface finish

• Flatness

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 363: Locating Reverse Input Clutch Plates Courtesy of GENERAL MOTORS CORP.

11. Install the reverse input clutch belleville plate (611), with the inner diameter up, into the reverse input clutch housing and drum assembly (605).

12. Install the reverse input clutch plates starting with a steel turbulator plate (612A) and alternate with a fiber plate assembly (612B).

13. Install the reverse input clutch selective backing plate (613).

14. Install the reverse input clutch retaining ring (614).

REVERSE INPUT CLUTCH PLATE TRAVEL CHECK

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 364: Checking Reverse Input Clutch Plate Travel Courtesy of GENERAL MOTORS CORP.

1. Apply an evenly distributed load to the clutch pack.

2. Use feeler gages to check the reverse input clutch plate travel.

3. Check the travel between the selective backing plate and the reverse input clutch retainer ring.

Clutch Plate Travel Specifications: The reverse input clutch plate travel should be 1.02­2.01 mm (0.040-0.079 in).

4. Select the proper selective backing plate to obtain the correct travel. Refer to Reverse

Input Clutch Backing Plate Selection.

REVERSE INPUT AND 3-4 CLUTCH HOUSING INSTALLATION

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 365: View Of Clutch Housing Components Courtesy of GENERAL MOTORS CORP.

1. Install the selective thrust washer (616) on the input housing (621).

2. Install the stator shaft/selective washer bearing assembly (615) on the input housing (621).

The black race on the bearing goes toward the oil pump - facing up.

3. Install the reverse input clutch assembly (605) on the input housing (621).

4. Index the reverse input clutch plates with the input clutch housing. Make certain all reverse input clutch plates are fully engaged. When fully engaged, the housings will be 88.9 mm (3.5 in) apart as shown (a).

REVERSE INPUT CLUTCH ASSEMBLE Tools Required

Fig. 366: View of Input Clutch Assembly & Input Housing Courtesy of GENERAL MOTORS CORP.

6. Index the 3rd and 4th clutch plates with the input internal gear.

• Ensure that all clutch plates are fully engaged.

• When properly assembled, the reverse input clutch housing will be located just below the case oil pump mounting face.

• To assist assembly, hold the output shaft while rotating the input housing.

IMPORTANT: The measurement from the top of the case to the top of the input clutch assembly is approximate.

7. Measure (a) from the top of the case to the top of the input clutch assembly (605). When fully engaged, the distance will be approximately 61.0 mm (2.40 in).

If the measurement is out of specification, you may not have all of the 3rd and 4th clutch plates indexed accurately.

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