USA Standard Gear ZMMUNWT297-2.5A Muncie 3rd & 4th Synchro Assembly

The USA Standard Gear ZMMUNWT297-2.5A is a complete synchronizer assembly designed for Muncie 4-speed manual transmissions. This versatile assembly is engineered to serve as both a 3rd & 4th gear synchro assembly and can also be flipped to function as a 1st & 2nd synchro assembly, providing dual functionality in one component.

The synchronizer assembly installs between the gears and engages and disengages those gears when shifting, ensuring smooth gear transitions. The M297-15 sliding sleeve and M297-2.5 hub are heat treated for aggressive shifting or daily driving, making this a durable replacement part suitable for both performance and street applications.

Key Features:

• Flip the top sleeve to fit 1st and 2nd synchro assembly - dual-purpose design
• Heat-treated hub and sleeve for enhanced durability
• Precision-manufactured for smooth, reliable shifting
• Direct replacement for worn or damaged Muncie synchro assemblies
• Suitable for Muncie M20, M21, and M22 4-speed transmissions

USA Standard Gear manufactures a full line of top-quality transmission parts. You can count on USA Standard Gear to fulfill all your transmission, differential, and general replacement part needs. This synchro assembly is ideal for transmission rebuilds, restoration projects, or replacing worn components that cause grinding or difficulty shifting gears.