1-2-3-4 Clutch Backing Plate Retaining Ring Measurement

Fig 1: Measuring 1-2-3-4 Clutch Backing Plate Retaining Ring

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Install the 1-2-3-4 and 3-5 reverse clutch housing with the 1-2-3-4 clutch plates installed, onto the torque converter housing. Install the DT 47868-2: magnetic base adapter onto the torque converter housing. Install DT 47868-1: clutch pack travel weight and DT 47868-3: clutch travel weight adapter onto the 1-2-3-4 clutch backing plate. Install the J 26900-13: magnetic base onto DT 47868-2: magnetic base adapter. Attach the J 8001: dial indicator set to the J 26900-13: magnetic base and zero out the dial indicator on the DT 47868-1: clutch pack travel weight. Special Tools DT 47868-1: Clutch Pack Travel Weight DT 47868-2: Magnetic Base Adapter DT 47868-3: Clutch Travel Weight Adapter J 8001: Dial Indicator Set J 26900-13: Magnetic Base For equivalent regional tools, refer to Special Tools .
1	1-2-3-4 Clutch Apply Passage Tip: Apply compressed air to the apply passage hole, at least 3 times and observe the dial indicator measurement each time. This action "fluffs" the clutch plates to ensure an accurate measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (6L80) .

Callout

Component Name

Preliminary Procedures

Install the 1-2-3-4 and 3-5 reverse clutch housing with the 1-2-3-4 clutch plates installed, onto the torque converter housing.
Install the DT 47868-2: magnetic base adapter onto the torque converter housing.
Install DT 47868-1: clutch pack travel weight and DT 47868-3: clutch travel weight adapter onto the 1-2-3-4 clutch backing plate.
Install the J 26900-13: magnetic base onto DT 47868-2: magnetic base adapter.
Attach the J 8001: dial indicator set to the J 26900-13: magnetic base and zero out the dial indicator on the DT 47868-1: clutch pack travel weight.

Special Tools

DT 47868-1: Clutch Pack Travel Weight
DT 47868-2: Magnetic Base Adapter
DT 47868-3: Clutch Travel Weight Adapter
J 8001: Dial Indicator Set
J 26900-13: Magnetic Base

For equivalent regional tools, refer to Special Tools .

1-2-3-4 Clutch Apply Passage
Tip: Apply compressed air to the apply passage hole, at least 3 times and observe the dial indicator measurement each time. This action "fluffs" the clutch plates to ensure an accurate measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (6L80) .