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The Yukon 4340 chromoly 35.46-inch left-hand inner axle is a replacement front inner shaft for 1979 and later GM 8.5-inch truck and Blazer applications. Built from high-tensile 4340 chrome-moly with cold-rolled splines and advanced heat treating, it accepts 5-760X series U-joints, measures 35.46 inches long, and features a 30-spline profile to suit GM 8.5-inch differentials requiring that length and spline count.
Yukon Gear 35.46in 30Spline Inner Left Hand 8.5in 79+ GM Truck & Blazer (4340) / Uses 5-760X U/Joint
