1964-1967 C2 4 Speed T-Handle Reverse Lockout Rod and Bushing 3901033 - OEM Number(s) (3901033)
Protect your Muncie 4-Speed shifter and ensure smooth reverse engagement with this lockout assembly.
This reverse lockout handle, rod, and bushing assembly is designed to maintain proper operation of the T-handle reverse mechanism on 1964–1967 Corvettes. By keeping the lockout trigger working correctly, it prevents accidental damage to your Muncie 4-Speed shifter while ensuring positive engagement. Built to GM specifications, this assembly delivers the correct fit and function to keep your Corvette’s transmission performing as intended.
Fits the Following Corvette Models:
Material/Finish
Dimensions
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Handle: 2 1/16" wide
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Rod length: 7 1/2"
Features/Benefits
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Complete reverse lockout handle, rod, and bushing assembly
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Ensures proper function of the T-handle reverse lockout
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Prevents damage to the Muncie 4-Speed shifter mechanism
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Direct-fit replacement built to GM specifications
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GM reference part number: 3901033
Because Details Matter
Every shift in a classic Corvette should feel precise and mechanical. This lockout assembly preserves the tactile connection of the Muncie shifter, ensuring reverse engages only when you command it. By choosing the correct parts, you protect both the performance and authenticity of your mid-year Corvette.
TECH TIP: At Mid America Motorworks, we’ve run into this issue more than once. On 1964–1967 4-speed shifters, wear or a buildup of dirt and grease can cause a problem when shifting from reverse to first. Instead of fully disengaging from reverse, the shifter can hang up—leaving you stuck with two gears engaged at once.
The Fix: In about 90% of cases, this simple procedure works:
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Turn off the engine and set the parking brake to make sure your Corvette won’t roll.
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From the driver’s side, carefully reach under the car (watch out for a hot exhaust!).
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Locate the two long levers on the driver’s side of the transmission that connect to the shifter.
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Pull or push both levers into the vertical (straight up) position. You’ll feel some resistance before they “pop” into place.
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This returns the transmission to neutral. Wipe off the grease, climb back in, and try shifting into first again—you should be back in business.
Prevention: To avoid getting stuck in the future, be sure the reverse lockout pops back into its normal position before shifting into first. You’ll hear or feel it click into neutral—only then move forward into gear.
Also known under these part numbers: (For reference only)