The Yukon USA Standard 4340 chromoly left-hand inner axle is a replacement axle for Dana 30 front differentials, made from high-tensile 4340 and advanced heat treatment for strength. It measures 18.8" from splines to u-joint center, uses a 27-spline interface and accepts 5-760X series u-joints for a dependable direct-fit service replacement.
USA Standard 4340 Chrome-Moly Replacement Axle For Dana 30 JK Left Hand Inner / 27Spl