Assuming you are talking about the axle shaft, you are contemplating saving the flanged end and the splined end and taking 4 inches out of the middle, then welding it back together. I have seen a few axle shafts that twisted and broke, these were medium duty trucks. The shafts appeared to be forged steel, with a grain that was pretty apparent. Without knowing the metallurgy of the material, I think it is weldable but I doubt you will ever achieve the original strength. If you have several shafts to experiment with and little cost, might as well give it a try.


1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy