Good used inspected shaft 41 Spline 41.25 inch long under the head. Part #  129753
Very common short side shaft for Kenworth Peterbilt applications with Eaton Spicer DSP40 DS404 DS405 differentials as well as others.
Has 8 straight hole 5/8 mounting holes.
You can find your axles part number by looking on the edge like the picture shown below.
Free UPS shipping is included.

Free Shipping listed is for the 48 contiguous states. For shipments to Alaska, Hawaii and Puerto Rico please ask a question and I will get you a actual freight rate. I will do my best to subsidize the freight cost.