ford 9 inch housings questions please

[rustymod]

hi got a ford 9 inch housing with hubs and trying to figure out what it is.

Need to know if it is centered and what size.

I have measured from hub face to hub face and this shows to be 59 inches

However one axle tube is shorter that the other. the rearend came with no axles so I dont have those to look at.

I was going to try to putting in a hog and measuring from the pinion to the hubs.

however is the rearend is centered...then what kind of measurement should I expect to see thanks

[hammond motorsports]

To check that out but the gear in the go from wheel face to pinion on the left then do the same on the right . The left tube is shorter even if it is a center housing do to the offset of the gear .