55-68 GM Muncie M Series Transmission Hurst Competition/Plus 4-Speed Installation Kit 3733163

Item #22945

Made in the USA
55-68 GM Muncie M Series Transmission Hurst Competition/Plus 4-Speed Installation Kit 3733163
Fits 1955-1957 Chevy cars and many other GM applications
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Fits 1955-1957 Chevy cars and many other GM applications with a 1963-1968 Muncie M20, 21 & M22 (451) transmissions.

Hurst Competition/Plus shifters have been the benchmark of transmission control and race-proven since 1963, and still today are constructed using the same high standards that George instated back then. Hurst Competition/Plus installation kits are custom designed to fit directly into your vehicles, with the least possible modifications, and to give you firm positive shifts every time. This Hurst Competition/Plus installation kit will fit various GM vehicles when using a 1963-1968 Muncie (451) transmission, and contains everything needed (shifter not included) to install your Competition/Plus shifter. These (451) Muncie transmission can be identified by the fact they have a stud on the shift forks that secures the shift arm on the transmission with a nut. Note: 1969-1974 Muncie (452, 453) transmissions use a bolt to secure the shift arm to the shift fork of the transmission and this type of Muncie will require a different installation kit then this one.

This kit will fit many GM applications and year ranges of vehicles, both with and without factory consoles and a 1963-1968 Muncie (451) transmission. Please refer to the Application tab and/or use the Vehicle drop down menus for your application before ordering, or call our tech line for guidance.

Fits the following vehicles with a Muncie (451) transmission:

1965 Buick Gran Sport/Skylark with/without console
1955-1957 Chevrolet Cars
1963-1964 Chevrolet Full Size with/without console
1964-1968 Chevrolet Chevelle with/without console
1964-1967 Chevrolet Chevy II/Nova with/without console
1964-1968 Chevrolet El Camino with/without console
1/2 Ton Chevrolet Trucks custom install
1964-1965 Oldsmobile F85, 442 with/without console
1966 Oldsmobile F85, 442 without console
1964-1966 Pontiac GTO, Le Mans, Tempest without console


  • All Parts, Hardware and Installation Instructions
  • Hardened Steel Shift Linkage Rods
  • Nylon Bushings and Spring Clips
  • Shifter Sold Separately
  • Hurst Shifter Reliability
  • Shifter Mounting Plate


(1) Hurst Competition/Plus 4-Speed Installation Kit 3733163


Automotive Item Grade: High Performance
Brand: Hurst
California Proposition 65 Required: Yes
Color: Natural Emission Code: 5 Material: Steel Product Type: Manual Transmission Shifter Installation Kit Part Number: 3733163


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations..


Instructions for Part# 3733163

For 1963-1968 Muncie M20/M21 Transmission (451.) Identified by the transmission uses a stud/nut to secure shift arm on the transmission shift fork.

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Attention California Residents - Proposition 65

Proposition 65 Warning WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov


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