Choose between standard lightweight or extra-lightweight styles for affordable weight savings and increased traction. All axles will twist upon acceleration, but these axles are designed for maximum twist! Lightweight axles typically save 1-2 pounds per axle and extra-lightweights typically save 2-3 pounds! Lightweight torque absorbing axles are manufactured from quality Hy-Tuff Steel and then heat treated to exacting standards to allow the axles to twist under initial load (imagine how a sway bar or torsion bar works). The twisting action allows the axle to absorb the initial torque load to the tire, increasing forward drive by preventing the tire from breaking loose. The axle then returns to its normal state, ready for the next turn. The unique machining and heat treating process allows these axles to be built much lighter than standard axles, saving 2-5 lbs per axle, depending on the size. Lightweight axles are stocked in lengths from 28.5” to 36”, typically in 1/2” increments. Axle splines are 31 spline on the differential side and standard 24 spline on the drive flange side. Axles ship with an aluminum plug in the differential end with a stainless steel round head bolt and lock washer. Lose 4-6 pounds of unsprung, rotating weight. Saves tires. Increases traction under acceleration and deceleration. Maintains bite longer. IMCA Approved.