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Drivetrain› Manual Transmissions and Components

USA Standard Gear

35-Tooth Reverse Mainshaft Gear

Name: 35-Tooth Reverse Mainshaft Gear
Brand: USA Standard Gear
SKU: ZMMUNWT297-36

$111.94 $107.89 Save $4.05

SKU: ZMMUNWT297-36

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$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Gear reverse mainshaft gear is a 35-tooth component designed for Muncie M20, M21, and M22 manual transmissions. This gear is essential for restoring your transmission's reverse functionality.

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The USA Standard Gear reverse mainshaft gear is engineered to provide a direct replacement for your Muncie M20, M21, or M22 manual transmission. Featuring 35 teeth, this gear is crucial for restoring proper reverse functionality. This part is compatible with a wide range of classic vehicles, including models such as the 1966-1974 Chevrolet Corvette, 1967-1974 Chevrolet Camaro, 1966-1972 Chevrolet Chevelle, and 1966-1971 Pontiac GTO, among many others listed in the application summary.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	USA Standard Gear
Part Number	ZMMUNWT297-36
Category	Drivetrain

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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