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HOMESERVICE MANUALSCHEVROLET1983STEP VAN P20, 5.7 M, AUTOMATIC, 400/M40REPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL - THM 400COMPONENT DISASSEMBLY & REASSEMBLYDIRECT CLUTCH & INTERMEDIATE ROLLER ASSEMBLYDISASSEMBLY
1983 Chevrolet Step Van P20, 5.7 M, Automatic, 400/M40

Direct Clutch & Intermediate Roller Assembly: Disassembly

1983 Chevrolet Step Van P20, 5.7 M, Automatic, 400/M40SECTION Disassembly
  1. Remove roller retainer snap ring and clutch retainer. Remove roller outer race and roller assembly. Turn unit over and remove direct clutch backing plate-to-clutch housing snap ring. Remove direct clutch backing plate and clutch pack.
  2. Compress spring retainer and remove snap ring. Use either Clutch Spring Compressor (J-4670), Rear Clutch Spring Compressor (J-6129), or press and Adapter (J-21664) to compress spring retainer. Remove retainer and 14 clutch release springs.
    NOTE: Keep direct clutch release springs separate from forward clutch release springs.
  3. Remove direct clutch piston from clutch housing. Remove inner and outer seals from piston. Remove center piston seal from direct clutch housing.
Fig 1: Direct Clutch Apply Ring Chart
G96B15983Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.