Equip your semi to be Ready for the Road Ahead , with the Lang Tools Automatic Slack Adjuster Release Tool and Wrench, a crucial set to modify automatic slack adjusters. Due to its fork-end tool and reversible wrench, this replacement set is able to release the anti-reverse mechanism with prying. Constructed with an easy-to-use design and E-Z Grip handle for added comfort. FleetPride is your First Click in Heavy Duty .