For those of us who didn't read that can you enlighten us? Are you saying any old F or J body spindels can be used to upgrade to fron disk brakes?

Yes!

(if you subscribe to the theory that the non a-e body spindle doesn't screw up the front suspension geometry too much)!

For a street car the non a-body spindle works fine.

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'68signet

"Living analog in the digital age."

there are also others that believe the non A-body spindles are better, personally I'm running other body spindles and have had no problem and I ride the suspension hard at times, more so than many people because I believe it's important to know how to use your car. I seriousely doubt that you could tell the difference in handling between the two spindles, but I wouldn't shy away from using other body spindles.

As for the article, check out

www.bigblockdart.com

there's another one that is against using other body spindles, I can't remember it's URL, personally I would read both of them before making any decisions(and read anything else you can get your hands on). I can endorse all I like, but I admit I haven't done any scientific testing, these articles have or at least know more about suspension then I do.

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My car may be slow to sixty, but at least it's been reliably slow to sixty for more than thirty years.