SAF-Holland's Haldex-brand Transit ABA Service Kit, No. 30010008, features all the parts neccessary to install a new automatic slack adjuster on AA1 transit buses, including washers, a screw, and mounting. Featuring a spider anchor bracket style and a 180-degree grease fitting location, the slack adjuster features a spline diameter-spline count of 1-1/2"-10 and an arm length of 5-1/2", as well as a body angle of 22.5 degrees.