hi jim,
in the forum drivetrain/Diff.. i write few details from my car and rear axle.
here the forum-link:
https://classicoldsmobile.com/forums...converter.html
when i need parts to change the rear axle ratio from 2.41 to between 3.08 to 3.23, what you need for more info (a few i write in the forumsite).
do you have a store, where i can buy parts?
have a good day
michael from germany