True???

Jarlaxle said
Some people like to keep things the way Chrysler designed them, no more and no less. Answer me this: If the other spindles work just as well, then why did they go to the trouble of tooling up for a new one?

And this guy makes the point that you have to answer:

Why would cash-strapped mid-70's Chrysler spend money engineering, and re-tooling for new spindles if what they had worked for the new applications?

Interchanges, by definition, work both ways, but if the A/E spindle wouldn't work on FMJ or B/R that should tell you something....

From the source that did it first, who actually chums around with Chrysler engineers, AND consistently turns out good tech:
http://www.moparaction.com/Tech/archive/disc-main.html