Weird axle housing width.

A couple years ago I bought an 8 3/4 housing from a local guy who told me it was an a body width housing. Well I stuck it in the corner and just brought it out today to clean it up for paint so I could start putting it all together. I threw a tape measure on it and it measures 55 and 3/8 flange to flange and 44 " center to center on the spring perches. So I guess I have a 64 B body housing instead. With this bastard housing can I use 68 to 70 B body axles etc? The difference in width will only be about 5/16" with my housing being wider.

Cley
Be very careful with axle length especially with cone traclok or a powerlok with the 2 pc side gears or you will take the splines off the end of axle where they do not engage enough.paul