Section 20 · Pages 46–78 (33 pages)

Cadillac Parts Listings

From the 1940–1956 GM Hydra-Matic Transmission Parts Catalog (1956 Edition)

Cadillac Hydra-Matic parts by Group 20 number with year, model, part name, part number and quantity, from 1941 to 1956, including 1956 units with and without dual carburetors and transmission serial number breaks. Groups cover the fluid coupling cover and torus members, front sun gear, front unit drive gear, center support, rear servo booster and accumulator, brake bands, detent and throttle control levers.

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What this section covers

  • Ordering instructions
  • Fluid coupling and torus members
  • Center support and clutch seals
  • Rear servo and accumulator
  • Brake bands and levers
  • Throttle and detent controls
Year
1940, 1941, 1942, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956
Make
Cadillac, Chevrolet, General Motors, GMC, Oldsmobile, Pontiac
Vehicle
Components and Systems, Hydra-Matic, Light Duty Trucks, Medium Duty Trucks, Passenger Cars, Transmissions, Trucks
Type
Parts Catalog
Models
Cadillac, Oldsmobile, Pontiac cars; Chevrolet 1/2–1 1/2 ton and GMC 100–500 series trucks
Publication
Bulletin 37A-100 (A-3700)
Pages
202

What’s inside

Contents

  1. Cover and Title PageCover and title page of the 1956 edition Hydra-Matic Transmission Parts Catalog for Cadillac, Chevrolet truck, Oldsmobile, Pontiac and GMC truck, with Bulletin 37A-100 dated 8-1-1956 and the tab index of catalog sections.pp. 1–3
  2. Part Number Conversion Listpp. 4–11
  3. Introduction and Model Identification GuideExplains how the catalog is arranged and how to find a part from an illustration group number, then a model identification guide listing every Hydra-Matic model code by year from 1940 to 1956, from 40-O Oldsmobile to the 1956 Cadillac, Jetaway, Stratoflight, Nash, Hudson, Rambler and GMC truck units.pp. 12–14
  4. Overhaul and Service Repair Kitspp. 15–23
  5. Cadillac Illustrationspp. 24–45
  6. 20Cadillac Parts Listingspp. 46–78
  7. Chevrolet, Oldsmobile and Pontiac Illustrationspp. 79–98
  8. 4Chevrolet Truck Parts Listingspp. 99–108
  9. 4Oldsmobile Parts Listingspp. 109–136
  10. GMC Truck Illustrationspp. 137–150
  11. 17GMC Truck Parts Listingspp. 151–184
  12. 4Pontiac Parts Listingspp. 185–202

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