High tensile strength 4340 Chromoly is heat-treated tempered and induction hardened to produce these heavy-duty axles that are up to 40% stronger than stock 1040 axles.The shafts are then precision CNC machined and magnaflux inspected for cracks before receiving a slick black anodized finish. This pair of chromoly rear axle shafts from Alloy USA fits 86-95 Toyota trucks.
