The ESCO Pitman Arm Spreader - For Chevrolet, Dodge, Ford, Freightliner, Isuzu, Kenworth, Mack Peterbilt, Volvo (Model 40318) is designed to fit Chevy 3500/5500, Dodge Ram 3500/5500, Ford F-350/550, Isuzu NPR, Kenworth, Peterbilt, Freightliner, Mack, Volvo and many other class 3-8 transportation trucks and equipment. Designed as an easy and versatile heavy-duty slip-on spreader, this tool can be used with up to a ½ in. impact wrench, hand ratchet or breaker bar. The versatility of this tool allows for fitting on a wide range of pitman arm widths and is manufactured with the highest-strength steel components to ensure longevity and reliability.