OTC Tools OTC 6532 GM Pitman Arm Tool. OTC Tools. Removes Pitman arms on pickups and sport utility vehicles. The wedge end is placed between the Pitman arm and steering gear box, and with just a few hammer blows, it separates them. Works on 1988 and newer Chevrolet and GMC 1/2- and 3/4-ton 4WD pickups, Suburban, Tahoe, and Yukon. 11-3/4" long with a 1-5/8" fork spread. Email for product availability.