USA Standard Gear ZMGSK116 Muncie 4-Speed Transmission Gasket and Seal Kit

The USA Standard Gear ZMGSK116 is a complete gasket and seal kit designed for GM Muncie M20, M21, and M22 4-speed manual transmissions. This comprehensive rebuild kit provides all the essential sealing components needed for a professional transmission overhaul or repair.

Kit Includes:

• Complete gasket set with multiple front retainer gaskets for various applications
• Rear output seal (non-flanged double lip design)
• Three shift shaft seals
• Speedometer fitting O-ring

Application:

• Fits Muncie M20, M21, and M22 4-speed transmissions
• Compatible with both 27-spline and 32-spline output shaft applications
• Covers 1963-1974 model years

This gasket and seal kit includes multiple front retainer gasket thicknesses to accommodate variations in aftermarket retainers, as well as the correct 1963-style retainer gasket. USA Standard Gear manufactures precision drivetrain components that meet or exceed OEM specifications, ensuring proper fit and reliable performance for your classic muscle car or performance vehicle transmission rebuild.

Cross-Reference Numbers: GSK-116, K297, GS297-55, WT297-55, 304002, PRT-034