OTC (7074A Truck Clutch Alignment Tool - 2" O.D. Designed for use on heavy-duty single two-plate and push/pull or manual and self-adjust clutches Shafts are constructed of lightweight fiberglass-reinforced nylon that won't hang up in clutch disc splines Rugged and will easily support the weight of heavy pressure plates 2 inch outside diameter 1-1/4 inch pilot