I'm talking 1984-85 timeframe when we were playing with them. I'm thinking some of the newer OE wheels may be effectively hub centric but also lug centric as they mostly use tapered seat lugnuts - as long as everything is concentric I see no issues. I know there have been times when I had problems registering an aluminum wheel on center due to tight fit (especially if you get any trash inbetween but that an issue of not paying enough attention) but I don't ever recall such an issue with OE steel wheels. Other option that was common on early aluminum and mag wheels with thick centers and cylindrical holes was shouldered lug nuts with large washers for purpose of distributing load into softer aluminum and preventing misalignment of early mag wheels to lugs. We swapped over to tapered steel inserts and standard 1/2-20 tapered lug nuts in the BBS wheels as early as 1978 - much easier to change a tire if you had to in a pit stop. But OE mags used shouldered lug nuts at least to late 1980's - well into radial tires which were dominant by mid 1970s. In either case the lug nuts and the preload in them are what take the load - remember the slotted lug holes for universal fit of some of the cheaper mags to fit both 4.5 Ford/Chrysler and 4.75 GM bolt patterns. The best the hubcentric feature would do is set up centering before you torque. Can't see how it would significantly affect load path or why radials would be more sensitive - may be just a pre-excuse in case there are tire problems. I know a tire guy who put Ford Aluminum wheels on a Jeep Cherokee - he had to bore our the centers of the Ford wheels to make them fit over hubs. Otherwise no issues but personally I would not have done it. On 1/5/2014 4:37 PM, Michael Moore
wrote:
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