So you think the factory axles were somehow sized for individual housings?
Uh, no. They had tapered bearings, the axle housings weren’t all identical, and the axles still worked for 50 years.
And it’s just as likely the housing isn’t off by that much. It’s a tape measure, not a laser. If it’s sagging a little, at a slight angle, or if the end catch is a little loose there’s your extra.
No! No no no no!
This chart is
horrible. It’s full of inaccurate information. There are 5 different width B-body housing.
5.
The A body 8 3/4 is wider than the A-body 7.25’s and 8.25’s by over an inch. That chart is just wrong, and yet people still post that garbage.
There’s a perfectly good list right on this site, stickied in the drivetrain section.
An accurate 8 3/4" rear axle width list
