USA Standard Gear Manual Transmission Synchro Blocker Rings

USA Standard Gear manual transmission synchro blocker rings, also called synchronizer rings, synchro rings or blocking rings, are replacement transmission parts. Each ring sits between the synchronizer and its gear. It helps match shaft speeds and line up the gears so shifts are smooth. When the teeth and friction surfaces on the original rings wear, replacement rings help restore shift performance.

Key Features:

• Replacement blocker rings for manual transmission rebuilds and repairs
• Help slow or speed up the input shaft during gear changes for smoother engagement
• Made to original factory specifications for a direct-replacement fit with factory synchro components
• Offered for a range of manual transmission designs and gear positions
• Suited to both repair and restoration work

USA Standard Gear makes a broad line of transmission, differential and general replacement parts. Choose the ring that matches your transmission model and gear position. The ring is a wear item, so replacing it during a rebuild helps keep the transmission shifting well.