FixVault

Low-Reverse Clutch

NOTE: Parking pawl may require removal to access low-reverse clutch.
  1. Remove low-reverse support-to-case retaining snap ring. Remove output shaft support fixture. See Figure . Push up on output shaft to loosen low-reverse clutch support. Remove support retainer spring from low-reverse support. Remove low-reverse support assembly and reaction carrier assembly (planetary). See Figure .
  2. Remove low-reverse clutch plates. Note locations of components. Remove internal reaction gear and thrust bearing. Remove internal reaction gear support-to-case thrust bearing. Remove output shaft.
  3. Remove parking lock bracket retaining bolts. Remove lock bracket. Using screw extractor, remove shaft plug. Remove parking pawl shaft, parking pawl and return spring if necessary. See Figure .
  4. Using Clutch Spring Compressor (J-23327), compress low reverse clutch spring retainer. Remove spring retaining ring and low-reverse spring assembly. Remove low-reverse clutch piston by applying air pressure in case apply passage. See Fig 1 .
Fig 1: Removing Low-Reverse Clutch Piston
G92A12583Courtesy of GENERAL MOTORS CORP.