big bolt pattern


Ah yes, Ehrenberg’s completely unsupported claim.

It’s bullshit.

Bill Reilly actually checked the geometry and published it. You can see for yourself in the article he wrote, @Professor Fate posted the version that was on Big Block Dart, or you can read it here.

Swapping Disc-Brake Spindles - Mopar Muscle Magazine

In short, Ehrenberg was completely wrong. The FMJ spindles work great, and arguably better for some set ups. Like mine. I run them on my Duster and my Challenger. Ball joint “overangling” isn’t a real problem with that swap.