Quote:
Originally Posted by wiredgeorge
BTW: I have run 80 PSI in my steel wheels which were initially installed with LRD (65 PSI) and none have blown up in quite a few years but will try and 2160 lb rating to be as safe as possible.
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To me, and I may be wrong, if a wheel casting is rated for 2150@65PSI and 2830@80PSI, dependent upon the number of lug holes, then it looks like (to me) that the wheel casting is the same and can carry the pressure, but based upon the support (number of lugs) it is limited in weight not pressure.....
Steel wheels, at least the ones I've seen, the center section is stamped with lug holes and that part is pressed into/welded onto the rim. I can't say for certain that the actual "pressure holding rim" is identical on steel wheels with 5 or 6 lug holes, so there may be some "technical differences in pressure capacity.... That's not the situation with an aluminum casting that is "drilled after production" to have either 5 or 6 lugs...
From what I've seen, steel wheels are typically rated with a higher weight capacity (and that means a higher pressure rating to carry that weight) than cast aluminum wheels.
You might find a local body shop that has the ability to strip and powdercoat your current wheels for significantly less than buying new ones that are rated lower then they are.