Tall Knuckle vs. Short Knuckle Spindles

I keep hoping for the day that people will actually stop reading that ridiculous article Ehrenburg wrote about how he thought the taller spindles would cause issues with binding etc., without ever bothering to 1. actually try it, or, 2. actually evaluate the geometry to see what the differences are.

Mopar Muscle actually did the latter, analyzing the geometry between the '73 up A body spindles and the F/M/J/B/R spindles. There's a whole article on what they did, including a chart showing the actual camber, caster, dive, roll center and toe changes throughout the entire range of suspension for both spindles, but here's the conclusion...

Overall, using the B-spindle will result in geometry changes that are unnoticeable with all but the most aggressive drivers running against a stopwatch. Even at that, there's a good argument that the increased camber gain will have a positive impact on cornering while the increased toe-in through extension will go undetected.

Read more: http://www.hotrod.com/how-to/chassi...ng-a-and-b-disc-brake-spindles/#ixzz3fDnuPB9U
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I run F/M/J spindles on both my Duster and my Challenger, and between the two have logged tens of thousands of miles on those spindles. I've never had an issue with them. But you don't have to believe me, follow the link the the article and look at the geometry numbers yourself.