600 Mini Sprint rear axle. Tube only. Aluminum. Splined. 52".

Length: 52"
Center Space: 14 1/8"
Material: Aluminum
Nut Diameter: 1 3/4"
Spline Count: 27
Spline Length (both sides): 17 1/8"
OD (on splines): 1.7275"
OD (on center): 1.875"
Wall Thickness: 0.45"
ID: 0.9650"
Finish: None
Total weight: 8 lbs