The History of the Muncie 4 Speed

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The Muncie 4 speed was a transmission that was used in General Motors (GM) between 1963 and 1975. There was little change to its basic design and operation; in retrospect, it was created to meet car needs at the time, if only for a brief period.

Creation

  • The Muncie 4 speed was created in response to the engine power levels in GM vehicles exceeding the limits of an earlier transmission, the Borg Warner T-10 4 speed. Although the Muncie 4 speed found it easier to handle engine's growing power, its design borrowed from that of the T-10 it was replacing and even used the same basic layout.

Other Manufacturers

  • While GM switched its gear boxes, other car companies such as Ford stuck with the T-10. Thus these companies were able to receive any modifications Borg Warner made on their transmissions.

T-10 Redesign

  • GM initially missed out on the T-10 redesign by Borg Warner, rechristened the Super T-10. However, eventually Borg Warner manufactured replacement Super T-10s for Muncie gear boxes.

Muncie Phased Out

  • By 1975, power levels had dropped, and catalytic converters and smog pumps were introduced. With these changes and innovations, the Muncie ceased production and the Super T-10 was introduced in GM cars.

Aftermath

  • The Super T-10 was used in GM cars from 1975 to 1983. They were also featured in certain Corvettes from 1984 to 1988. Muncie 4 speeds are still manufactured for GM cars still around from the 1963-to-1975 era.

References

  • Photo Credit yearone.com
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