1968-70 Mustang Cougar Fairlane 28 spline axle (right side longer).
I pulled this out of a Mustang a long time ago. I think it was a 1970.
Marked C70W5 and measures approximately 31-1/8 inches from the flange to the tip.
It is the thicker shaft the entire length, not the tapered (or stepped) variety.
Nice straight undamaged splines, but could use new bearings.
The flange area could use media blasting or wire brushing for the surface rust.
$25.00 or offer.