Hey folks, here for some help again. I have a 66 F100 with factory 9" 28 spline axles. I broke one of the axles today (part heavy foot part mini spool I guess).Lasted over a year and a half of abuse so I have decided to go back with with the same thing instead of upgrading. So my question is what is the length of my axle shaft and (or) where can i find one?