Specifications include, but are not limited to: Frame & Equipment; 10-3/4" Steel Rails; 10.75 x 3.5 x .375 Dimension, 2,136,000 RBM; Yield Strength: 120,000 psi. Section Modulus: 17.8 cubic inches. Weight: 1.74 lbs/inch pair; Full Steel Inner Liner; Zinc Coated Anti Corrosion Treated Frame Rails; Aluminum Frame Rail Crossmembers; FEPTO Prov 24" Bumper Extension; EOF Square without Crossmember; Rear Mudflaps and Straight Hangers; Front Axle & Equipment; PACCAR FX-20 Steer Axle 20,000 lbs. 4" Drop; Taper Leaf Springs, Shocks 20,000 lb; Power Steering Sheppard HD94 Dual Gear; Power Steering Reservoir Frame Mounted w/Cooler; PHP10 Iron PreSet PLUS Hubs; Greasable Front Spring Pins; Bendix Air Cam Front Drum Brakes 16.5x6; PACCAR FX Wide Track IPO Standard; Gusseted Cam Brackets, Steer Axle; Heavy Duty Cam Bushings, Steer Axle