Low and Reverse Clutch Spacer Plate Selection

Special Tools

• J 8001:  Dial Indicator Set
• J 26900-13:  Magnetic Indicator Base

Fig 1: Locating Inspection Areas On Low And Reverse Clutch Plates
Courtesy of GENERAL MOTORS CORP.
1. Inspect the low and reverse clutch plates for the following conditions:
   • Composition material wear
   • Composition material heat damage
   • Composition material delamination
   • Steel plates heat damage
   • Steel plates surface finish damage
Fig 2: Low & Reverse Clutch Plate Assembly
Courtesy of GENERAL MOTORS CORP.
2. Stack the low and reverse clutch plate assembly on a flat surface in the following order:
   1. One waved plate (682A)
   2. Five fiber plate assemblies (682C) and four steel plates (682D), starting with one fiber plate assembly and alternating with steel
   3. Low and reverse clutch support (679)
Fig 3: Measuring Height Of Clutch Pack
Courtesy of GENERAL MOTORS CORP.
3. Using the J 8001:  dial indicator set (1) and the J 26900-13:  indicator base (2), measure the height of the clutch pack from the work surface to the top of the low and reverse clutch support (679).
4. Refer to Low and Reverse Clutch Spacer Plate Selection in order to select the proper thickness of the low and reverse clutch selective spacer plate (682B).
Fig 4: View Of Clutch Pack
Courtesy of GENERAL MOTORS CORP.
5. Install the proper selective spacer plate (682B) between the wave plate (682A) and the first fiber plate assembly (682C), with the identification side up.

   The overall height for the clutch pack including the selective spacer plate should be 29.23-29.90 mm (1.15-1.18 in).