USA Standard Gear Manual Transmission Synchro Keys

USA Standard Gear manual transmission synchro keys, also called synchronizer keys or synchro inserts, are replacement parts for rebuilding or repairing a manual gearbox. Synchro keys sit inside the synchronizer assembly. They help the sleeve move the blocker ring into contact with the gear. That contact matches gear speeds so shifts go in smoothly. Worn keys can cause grinding, sloppy shifts, or gears that pop out of position. Replacing them is a common part of a transmission rebuild.

Key Features:

• Replacement synchro keys for a range of manual transmission applications
• Help restore smooth, precise gear engagement during shifts
• Suited to transmission rebuilds, repairs, and synchronizer service
• Made by USA Standard Gear, which offers a broad line of transmission, differential, and general drivetrain replacement parts
• Backed by a 2-year limited manufacturer warranty

USA Standard Gear aims to supply dependable, better-than-OEM drivetrain replacement parts. Choose the child item that matches your transmission model and gear position.