Gm 10.5/11.5 38Spline 4340 38.2 Inch ->42.2 Inch Full Float Axle 8X3.563 Inch 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 cut to length shaft for GM 14T and 11. 5 inch, Full Float axle Fits GM 10. 5 inch 14 bolt truck 14T and GM 11. 5 inch Cut to length design fits 38. 2 inch to 42.