Stupid Axle Questions.....

Spline count and the diameter at the splines aren’t the only considerations. The diameter at the wheel bearing is another thing to check, or whether you can get a wheel bearing of the correct the thickness and OD for the axle diameter. And then there’s the axle flange standoff, since they don’t use the same brakes the standoff may be different. Which would mean a complete brake swap might also be necessary.