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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Automatic Transmission - 6L80 (MYC) Or 6L90 (MYD) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> 1-2-3-4 And 3-5 Reverse Clutch Overhaul (6L45/6L50/6L80/6L90) >> 1 - 2 - 3 - 4 and 3 - 5 Reverse Clutch Piston Seals Replacement

1 - 2 - 3 - 4 and 3 - 5 Reverse Clutch Piston Seals Replacement

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: 1-2-3-4 And 3-5 Reverse Clutch Piston Seals
GM1555367Courtesy of GENERAL MOTORS COMPANY
1 - 2 - 3 - 4 and 3 - 5 Reverse Clutch Piston Seals Replacement

Callout Component Name
CAUTION: Refer to Seal Reuse Caution .
Preliminary Procedure Lubricate all seals with automatic transmission fluid (ATF) prior to installation.
1 1 - 2 - 3 - 4 Clutch Piston Seal
2 3 - 5 Reverse Clutch Piston Dam (O-Ring) Seal
3 3 - 5 Reverse Clutch Piston Inner Seal
4 1 - 2 - 3 - 4 Clutch Piston Housing
5 3 - 5 Reverse Clutch Piston Outer Seal
6 3 - 5 Reverse Clutch Piston
7 1 - 2 - 3 - 4 Clutch Piston Inner Seal
CAUTION: Do not install a NEW 1 - 2 - 3 - 4 clutch piston inner seal yet. A special tool used to install the 1 - 2 - 3 - 4 clutch piston housing retaining ring may damage the seal if the seal is installed prior to installing the retaining ring. Refer to 3 - 5 Reverse Clutch Piston Installation.
8 1 - 2 - 3 - 4 Clutch Piston Housing Seal
9 1 - 2 - 3 - 4 Clutch Piston Housing Seal