1-2-3-4-5 Reverse Clutch Backing Plate Retaining Ring Measurement

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Reaction Internal Gear and 1-2-3-4-5 Reverse Hub and 1-2-3-4-5 Reverse Clutch Plate

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Install the case extension assembly. Refer to Case Extension Assembly Installation Install the 1-2-3-4-5 reverse clutch plate assembly. Refer to Reaction Internal Gear and 1-2-3-4-5 Reverse Hub and 1-2-3-4-5 Reverse Clutch Plate Assembly Installation .
1	1-2-3-4-5 Reverse Clutch Backing Plate Procedure Assemble the tools as shown and apply 80 pounds of pressure to the load gauge by turning the screw on the DT-48056 bridge clockwise. Zero out the dial indicator. Remove the pressure on the load gauge by turning the screw on the DT-48056 bridge one full turn counterclockwise. Apply compressed air to the indicated case passage and simultaneously adjust the screw on the DT-48056 bridge to apply 80 pounds of pressure to the load gauge. Observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (8L90)Clutch Backing Plate Retaining Ring Specifications (8L45) to determine the correct 1-2-3-4-5 reverse clutch backing plate retaining ring. Special Tools DT-48056 Spring Compressor Bridge DT-50902 Adjustable Clutch Spring Compressor DT-50903 Clutch Travel Load Gauge DT-51328 Clutch Compressor and Air Travel Check Rod Extension GE-8001 Dial Indicator Set For equivalent regional tools, refer to Special Tools .

Callout

Component Name

Preliminary Procedure

Install the case extension assembly. Refer to Case Extension Assembly Installation
Install the 1-2-3-4-5 reverse clutch plate assembly. Refer to Reaction Internal Gear and 1-2-3-4-5 Reverse Hub and 1-2-3-4-5 Reverse Clutch Plate Assembly Installation .

1-2-3-4-5 Reverse Clutch Backing Plate

Procedure

Assemble the tools as shown and apply 80 pounds of pressure to the load gauge by turning the screw on the DT-48056 bridge clockwise.
Zero out the dial indicator.
Remove the pressure on the load gauge by turning the screw on the DT-48056 bridge one full turn counterclockwise.
Apply compressed air to the indicated case passage and simultaneously adjust the screw on the DT-48056 bridge to apply 80 pounds of pressure to the load gauge.
Observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (8L90)Clutch Backing Plate Retaining Ring Specifications (8L45) to determine the correct 1-2-3-4-5 reverse clutch backing plate retaining ring.

Special Tools

DT-48056 Spring Compressor Bridge
DT-50902 Adjustable Clutch Spring Compressor
DT-50903 Clutch Travel Load Gauge
DT-51328 Clutch Compressor and Air Travel Check Rod Extension
GE-8001 Dial Indicator Set

For equivalent regional tools, refer to Special Tools .