USA Standard Gear ZMMUNWT297-21A Muncie Manual Transmission Gear - M22 2nd 30-Tooth

The USA Standard Gear ZMMUNWT297-21A is a replacement 2nd gear for Muncie M22 manual transmissions. This 30-tooth main shaft gear is designed for 1963-1974 Muncie M22 4-speed transmissions, commonly known as the "Rock Crusher" due to their distinctive gear whine and exceptional strength.

Key Specifications:

• 30-tooth design for proper gear ratio and synchronization
• Main shaft 2nd gear position
• Direct fit for all 1963-1974 Muncie M22 transmissions
• Manufactured to ISO9001 quality standards
• Replaces OEM part numbers: WT297-21A, AC-Delco 3879999, 304582A

The Muncie M22 transmission was the performance choice for muscle car enthusiasts, featured in high-performance GM vehicles including Corvettes, Camaros, Chevelles, and other performance models. This replacement gear allows for proper restoration and repair of these legendary transmissions, maintaining their close-ratio performance characteristics.

USA Standard Gear manufactures a complete line of quality transmission components designed to meet or exceed OEM specifications for reliable performance and durability.