Yukon 4340 Chrome Moly Replacement Rear Axle For Dana 80 37 Spline 35.5-39.5 Inch Applications Yukon Gear & AxleYukon Gear and Axle offers an extensive line of general replacement and high performance axles for passenger car, truck and SUV applications. High quality alloys and the latest in heat treating technologies provide a strong axle for off road, on the street or at the track. Details: Yukon 4340 Chromoly Cut To Length replacement rear axle for Dana 80 Fits Dana 80 37 spline Cut to length design fits 35. 5 inch to 39. 5 inch applications 8 x 3. 96 inch