OTC Tools OTC 7070A Truck Transmission Bearing Service Set. The set is designed to help you remove input shaft bearings and countershaft bearings, in both the main and auxiliary boxes of heavy-duty Fuller transmissions. It will also remove end yokes from 1600/16101810 series transmissions. The puller delivers 10 tons of mechanical power essential force for working on big gearboxes. Works on Fuller twin-countershaft transmissions: 125, 600, 660, 900, 9500, 1100, 12500, 12600, 13000, 14600, 15600, and 8600 series, 910913, 915, and 9513.