Dakota Don, that was my question on page one, custom axles??

Here is a link to a chart with some of the various dimensions and spline counts:

http://www.autohobbydigest.com/dana.html

Good quote from the article:

"When installing truck differentials in cars, it is usually necessary to replace the differential gears which the axle shaft splines engage (part 55 in Figure 1). These are readily available for 1-1/2"x35 spline axle shafts as are the pinion gears and shafts (parts 53 and 54 in Figure 1)."