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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Automatic Transmission - 6T45 (MH7) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Low and Reverse and 1-2-3-4 Clutch Housing Assemble (6T40/45/50) >> 1 - 2 - 3 - 4 Clutch Piston Installation

1 - 2 - 3 - 4 Clutch Piston Installation

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
GM1891402
1 - 2 - 3 - 4 Clutch Piston Installation

Callout Component Name
1 1 - 2 - 3 - 4 Clutch Piston
NOTE:

DT-47798  seal protector prevents the piston seal lip from damage during installation. Apply a thin coat of ATF to the I.D. of DT-47798  seal protector to ease the installation of the piston.


Special Tool 
DT-47798  Seal Protector
For equivalent regional tools, refer to Special Tools .
2 1 - 2 - 3 - 4 Clutch Spring
3 1 - 2 - 3 - 4 Clutch Spring Retainer
CAUTION:

Regulate the air pressure to 276 kPa (40 psi) maximum. High pressure could cause the piston to over travel and damage the piston seals.

NOTE:
  1. Place the retainer onto DT-47799-1 which is part of DT-47799  spring compressor. Compressing the spring using DT-47799-2 which is part of DT-47799  spring compressor, will install the retainer into the retainer groove.
  2. Apply shop air to the clutch fluid feed hole in the clutch housing to verify proper piston operation.

Special Tool 
DT-47799  Clutch Piston Spring Compressor
For equivalent regional tools, refer to Special Tools .