http://www.oldsgmail.com


Reference Manual


Chapter 3: Axles: Identification

Identification of a 7.5" vs. a 8.5" rear axle can be a little difficult if you don't know what to look for.

The 7.5" rear axle can be identified by the "fangs" on the bottom of the center section:

7.5" rear axle
Image courtesy of Paul Baumgartt

While the 8.5" rear axle can be identified by the "triangles" on the bottom of the center section:

8.5" rear axle
Image courtesy of Paul Baumgartt

And a Ford 9" rear can be identified by the lack of a cover on the rear of the housing:

9" Ford rear axle


Table of Contents Top of Chapter

Copyright © 1998-2017 by The Members of The Oldsmobile Mailing List. All Rights Reserved. This web site is not affiliated with General Motors or Oldsmobile. General Motors and Oldsmobile are trademarks of their respective companies. The owners and members of this site are not responsible for errors or inaccuracies.