Originally Posted by +fireamx
In the "Hemi automatic" cars, I believe you got the Dana 60 if you ordered anything over a 3:55 gear ratio.
It was still an optional rear end.
Saying that anything was standard on old Mopars is dangerous. There were frequent exceptions to every rule. Quite a few E and B body convertibles were produced without the chassis reinforcements that came "standard" on 'verts. On the other hand, there were some basic 318 coupe and hard top variants that did have the extra bracing.
Nothing was set in stone.