Section 7A · Pages 253–312 (60 pages)

400 Automatic Transmission

From the 1979 Chevrolet Passenger Car and Light Truck Unit Repair Manual

Unit repair of the 1979 400 automatic transmission, with a typical side cross-section. Disassembly of major units covers the governor, speedometer gear, pan, filter and intake pipe, control valve, solenoid connector and governor pipes, servos with rear band apply pin selection, manual linkage, rear seal and case extension, front and rear end play checks, oil pump and gear unit. Unit service covers the servos, control valve, oil pump, forward clutch, direct clutch and intermediate roller, center support, reaction carrier, roller clutch and output carrier with pinion replacement, bands, case and converter. Assembly of the rear unit and of units to the case follows.

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What this section covers

  • Disassembly of major units
  • Rear band apply pin selection and end play checks
  • Servos, control valve and oil pump service
  • Forward clutch, direct clutch and intermediate roller
  • Center support, reaction carrier and pinion replacement
  • Case, bands and converter inspection
  • Assembly of rear unit and units to case
  • Specifications and special tools
Year
1979
Make
Chevrolet
Vehicle
Camaro, Chevelle and Malibu, Impala and Caprice, Light Duty Trucks, Monte Carlo, Nova, Passenger Cars, Trucks
Type
Overhaul & Unit Repair
Models
Chevrolet, Malibu, Monte Carlo, Nova, Camaro, Light Duty Trucks Series 10-30
Publication
ST-333-79
Pages
396

What’s inside

Unit repair manual

  1. 1DAir Conditioning Compressor Overhaulpp. 7–50
  2. 3BSteeringpp. 51–68
  3. 4BRear Axle Differentialpp. 69–126
  4. 4CFront Axle Differential (4-Wheel Drive)pp. 127–136
  5. 5Brakes (Power Brake Units)pp. 137–164
  6. 7A200 Automatic Transmissionpp. 165–214
  7. 7A350 Automatic Transmissionpp. 215–252
  8. 7A400 Automatic Transmissionpp. 253–312
  9. 7BManual Transmissionpp. 313–362
  10. 7CClutchespp. 363–370
  11. 7DTransfer Casespp. 371–396

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