Coast & Direct Clutch, & Reaction Carrier Assembly: Disassembly

1. Remove selective thrust bearing and thrust washer from input shaft. Remove input sun gear-to-input sun gear shaft snap ring. Remove input sun gear from input sun gear shaft. Remove thrust bearing from reaction carrier assembly. See Fig 1 .
2. Remove reaction carrier assembly. A thrust bearing is permanently installed in reaction carrier assembly under pinion gears. Remove reaction sun shell. Remove thrust bearing from reaction carrier shaft shell. Remove reaction carrier shaft shell. Remove thrust bearing from top of sprag race assembly.
3. Remove coast and direct clutch snap ring. Remove direct clutch plates from clutch input housing. Note number and sequence of plates during removal for reassembly reference. Number of clutch plates may vary depending on vehicle model. Direct clutch consists of a backing plate, steel plates and friction plates.
4. Remove input sun gear shaft and sprag as an assembly by lifting up on input sun gear shaft. Remove inner race-to-input housing thrust bearing from input housing, if necessary. Thrust bearing may remain with input sun gear shaft and sprag when assembly is removed. Remove coast clutch plates from input housing. Coast clutch consists of 4 steel plates and 4 friction plates.
5. Using Clutch Spring Compressor (J-23327) and Adapter (J-41232), compress direct clutch spring and retainer assembly. See Fig 2 . Remove direct clutch spring retainer ring. Remove clutch spring compressor and adapter. Remove direct clutch spring and retainer assembly. Remove direct clutch piston assembly.
6. Using clutch spring compressor and Adapter (J-41236), compress coast clutch release spring assembly. Remove snap ring, clutch spring compressor and adapter. Remove coast clutch spring retainer and coast clutch release spring. Remove coast clutch piston assembly. Remove and discard 4 Teflon oil seal rings from input shaft assembly.
7. Remove input sprag assembly from input sun gear shaft. Remove snap ring from sprag assembly. Remove sprag clutch assembly from sprag outer race. Remove 2 end bearings from sprag clutch assembly.

Fig 1: Exploded View Of Coast & Direct Clutch Assemblies

Courtesy of GENERAL MOTORS CORP.

Fig 2: Compressing Direct Clutch Return Spring Assembly

Courtesy of GENERAL MOTORS CORP.