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1978 General Motors

Application (1) Type Make & Design Master Cylinder Power Booster
C10 (Diesel)     Delco - Bendix-Hydroboost
  Front Disc. Delco-Floating Caliper Dual Piston  
  Rear Drum Bendix-Single Anchor    
C10 (Gas), K10 & G10, 20     Delco - Bendix or Delco Single Diaphragm(2)
  Front Disc. Delco-Floating Caliper Dual Piston Bendix or Delco Dual Diaphragm(2)
  Rear Drum Bendix-Single Anchor    
C20 & K20     Delco - Bendix or Delco Dual Diaphragm
  Front Disc. Delco-Floating Caliper Dual Piston  
  Rear Drum Bendix-Single Anchor    
C30     Delco - Bendix or Delco Dual Diaphragm
  Front Disc. Delco-Floating or Sliding Caliper Dual Piston Bendix-Hydroboost
  Rear Drum Bendix-Single Anchor    
K30     Delco - Bendix-Hydroboost(3)
  Front Disc. Delco-Sliding Caliper Dual Piston  
  Rear Drum Bendix-Single Anchor    
P30 Motor Home Chasis     Delco - Bendix-Hydroboost
  Front Disc. Delco-Sliding Caliper Dual Piston  
  Rear Drum(5) Bendix-Single Anchor    
P30 Forward Control     Delco - Bendix or Delco Dual Piston
  Front Disc. Delco-Floating or Sliding Caliper Dual Piston Bendix-Hydroboost(3)
  Rear Drum(5) Bendix-Single Anchor    
G30     Delco - Bendix or Delco Dual Diaphragm
  Front Disc. Delco-Floating or Sliding Caliper Dual Piston  
  Rear Drum Bendix-Single Anchor Bendix-Mini(4) Bendix-Hydroboost(3)
(1) The vehicle series numbers used in this chart have been abbreviated for common reference to both Chevrolet and GMC models.
(2) Optional.
(3) Standard on some models, optional on others.
(4) Used on models with Hydroboost.
(5) Bendix sliding caliper discs used on models with 11, 000 lb. rear axle.
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