USA Standard Gear ZMZF1307-303-109 Manual Transmission ZF 3rd Gear Countershaft

The USA Standard Gear ZMZF1307-303-109 is a precision-engineered 3rd gear countershaft component designed for ZF S542 and S547 5-speed manual transmissions. This critical transmission gear is manufactured to meet or exceed OEM specifications, providing reliable performance for manual transmission rebuilds and repairs.

Key Features:

• Direct replacement countershaft gear for ZF manual transmission 3rd gear position
• Precision-machined gear teeth for smooth engagement and long service life
• Manufactured to OEM quality standards for proper fit and durability
• Compatible with ZF S542/S547 5-speed transmission assemblies
• Essential component for complete transmission rebuilds or gear replacement

USA Standard Gear manufactures a comprehensive line of manual transmission components for professional rebuilders and DIY mechanics. This countershaft gear is designed for use in ZF 5-speed manual transmissions commonly found in Ford F-Series trucks and other heavy-duty applications. Proper installation requires transmission disassembly and should be performed by experienced technicians with appropriate tools and shim kits for proper gear spacing and endplay adjustment.