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Originally Posted by elwesso 114.3 and 115 are interchangeable...
some say theyre not, but I have a hard time being convinced that 7/10 of a millimeter will make a difference..... |
Overall, it's much better in the long run to get 115mm wheels, but they are much harder to come by. WHY GM continues to use this standard I don't understand, but...
That small of a difference will be a big difference when the wheel is spinning 20 times per second. Even 115mm wheels will shake if torqued down wrong.
Only SOME are interchangeable to begin with, but I wouldn't use the word *interchangable* - the 114.3 wheels are not manufactured to fit 115mm, period. They are *made* to work with the use of hubcentric rings. These hubcentric rings do not actually carry any weight or force, they simply make sure the wheel is mounted up on the hub center, so when you torque the rims down, it stays center. Of course, many people have had success without hub centric rings, but what if you take your car into the dealer and they have to remove a wheel? Don't you want to be SURE they are centered? Do you want some tech throwing your wheel on and torquing it down wrong? The hubcentric ring helps prevent this.
But keep in mind that some, only some, 114.3 rims just never work right on 115mm hubs, no matter what. But usually the manufacturer will indicate this *strongly* - rarely do they say their 114.3 wheel will fit a 115mm hub (for liability reasons), but they normally will tell you if it DOESN'T...
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