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Home >> Cadillac >> 2019 >> XTS Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Automatic Transmission - 6T70 (M7U M7W), 6T75 (M7V), Or 6T80 (Mhm) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> 3-5-Reverse and 4-5-6 Clutch Housing Disassemble >> 4 - 5 - 6 Clutch Piston Removal

4 - 5 - 6 Clutch Piston Removal

WARNING: This page is about a different car, the 2018 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of 4-5-6 Clutch Piston Components
GM2742781Courtesy of GENERAL MOTORS COMPANY
4 - 5 - 6 Clutch Piston Removal

Callout Component Name
1 4 - 5 - 6 Clutch Dam Retaining Ring

Special Tools

  • DT-47693  Dam Protector
  • GE 8059  Snap Ring Pliers-Parallel Jaw or equivalent

For equivalent regional tools, refer to Special Tools .
2 4 - 5 - 6 Clutch Piston Fluid Dam

Procedure:

  1. Place the 3 - 5 - R and 4 - 5 - 6 clutch housing onto the case cover assembly.
  2. Apply shop air to the 4 - 5 - 6 clutch feed hole using a rubber tipped air gun to dislodge the dam piston and the 4 - 5 - 6 clutch piston from the clutch housing.
3 4 - 5 - 6 Clutch Spring Assembly
4 4 - 5 - 6 Clutch Piston
5 4 - 5 - 6 Clutch Piston Outer Seal (Stepped)
6 4 - 5 - 6 Clutch Piston Outer Seal (Rounded)
7 4 - 5 - 6 Clutch Piston Inner Seal