The USA Standard Gear ZMG56-9A is engineered specifically for the G56 manual transmission, providing reliable performance for heavy-duty applications. This countershaft is a critical component for those looking to maintain or restore their transmission's functionality.

Designed for the 5th and 6th gear operation, this countershaft features a 47-tooth configuration for the 5th gear and a 52-tooth configuration for the 6th gear, ensuring smooth gear transitions and durability under load.