Pages 7–28 (22 pages)

Cadillac Section (Hydra-Matic)

From the 1956 GM Automatic Transmission Parts Catalog Supplement

1956 Cadillac Hydra-Matic parts in group 20 order. Exploded views show the flywheel housing and torus cover, front unit coupling, rear clutch and neutral clutch drum, front pump and sprag, rear pump and reverse unit, servo and accumulator, followed by a keyed control valve drawing. The lists give part numbers for the case, overhaul gasket set, oil cooler (with and without dual carburetors), neutral and rear clutch plates and pistons, selective thrust washers, pumps, governor, parking brake and valve bodies, with early-type transmission number notes.

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What this section covers

  • Exploded views of the controlled-coupling Hydra-Matic
  • Typical control valve assembly key
  • Case, flywheel housing and oil cooler
  • Front unit coupling, torus and selective thrust washers
  • Neutral, rear and reverse clutches
  • Front and rear oil pumps, servo and accumulator
  • Governor, parking brake and control valve bodies
Year
1955, 1956
Make
Buick, Cadillac, Chevrolet, General Motors, GMC, Oldsmobile, Pontiac
Vehicle
Components and Systems, Dynaflow, Hydra-Matic, Passenger Cars, Transmissions, Trucks
Type
Parts Catalog, Supplement
Models
Buick Dynaflow; Chevrolet Powerglide; Cadillac, Oldsmobile 88/98, Pontiac and GMC 100–MW500 Hydra-Matic
Publication
A-3010-A
Pages
97

What’s inside

Parts catalog

  1. CoverFront cover: 1956 Automatic Transmission Parts Catalog, supplement to Automatic Transmission Parts Catalog A-3010, GM Parts Sales, United Motors System.pp. 1–2
  2. Buick Section (Dynaflow)Three pages of 1956 Buick Dynaflow (D.F.) parts in group 4 order: gasket and seal kits, case, converter pump and cover, stator blades and carrier, first and second turbines, converter sun gear and sprag, oil cooler pipes, low range reaction gear and thrust washers by thickness, planetary gear set, servo body and low servo piston.pp. 3–6
  3. Cadillac Section (Hydra-Matic)pp. 7–28
  4. Chevrolet Section (Powerglide)A single page of 1956 Chevrolet passenger car Powerglide (P.G.) parts: transmission clutch drive and driven plates, clutch hub assembly and clutch piston.pp. 29–30
  5. Oldsmobile Section (Jetaway Hydra-Matic)pp. 31–48
  6. Pontiac Section (Hydra-Matic)pp. 49–71
  7. GMC Truck Section (Hydra-Matic)pp. 72–95
  8. Back CoverBack cover listing the divisions covered (Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac and GMC Truck) and the catalog number A3010A.pp. 96–97

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