Pages 106–110 (5 pages)

4-Speed: Planetary Gears, Fluid Coupling and Components

From the 1961 Pontiac Hydra-Matic Manual (3-Speed and 4-Speed)

Year
1961
Make
Pontiac
Vehicle
Components and Systems, Hydra-Matic, Passenger Cars, Transmissions
Type
Overhaul & Unit Repair, Service Manual
Models
1961 Pontiac; 3-speed P-61, PE-61, PA-61, PB-61; 4-speed PS-61, PES-61, PAS-61, PBS-61
Pages
210

Covers the basics of the 4-speed unit: planetary gear train operation and advantages, the fluid coupling (plus a second, smaller coupling in the front unit that locks two gear members for direct drive), the sprag clutch, and the Hydra-Matic components and their location with the principles of operation.

What this section covers

  • Planetary gear train
  • Fluid coupling and front unit coupling
  • Sprag clutch
  • Components and their location
  • Principles of operation
Read from page 106
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