Use to hold valve timing during belt replacement on most vehicle makes. Suitable for use on Single Cam, Twin Cam, and Quad Cam engines.
Single Cam Gear Lock: Used for single cam engines. Twin cam engines when dual gear lock may not suit. Great for repair situations where individual gears need to be locked (ie replacing camshaft)
Dual Gear Lock: Use on most dual cam and quad cam engines to quickly lock and hold valve timing during belt replacement. Horizontal and vertical adjustments provides cover over greater gear diameter range. Spring loading reduces set up time.