"New 1960 Plymouth 3 Speed Automatic Transmission," circa 1959

01

Artifact Overview

This diagram illustrates an automatic transmission developed for the Plymouth Valiant compact car, introduced for 1960. The three-speed unit used a planetary gearset based on a design by Howard Simpson. Simpson's gearsets were licensed by Ford and General Motors, too, and they became common in automatic transmissions produced through the latter half of the 20th century.

Artifact Details

Artifact

Diagram

Date Made

circa 1959

Location

Not on exhibit to the public.

Object ID

2023.190.1

Credit

From the Collections of The Henry Ford. Gift of Edwina M. Simpson.

Material

Paper (Fiber product)

Technique

Printing (Process)

Color

Black-and-white (Colors)

Dimensions

Height: 16.375 in (in frame)
Width: 21.5 in (in frame)

Inscriptions

below diagram: NEW 1960 PLYMOUTH 3 SPEED AUTOMATIC TRANSMISSION / MANUFACTURED UNDER THE FOLLOWING SIMPSON PATENTS,- / 2,518,824 2,518,825 2,586,794 2,856,795