What is the "real" bolt pattern?
- Thread starter Clarkwb100
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I have run dozens of 5x120 5x4.75 combos without failure. That's the whole point of being lug centric. .7mm divided by 5? .14 of a mm difference basically invisible to the naked eye? Taken in to account the collective diameters and depth of contact surface area of the 5 nuts to wheel face, thread depth, torque specs... I'd like to see somebody actually prove that they had a failure due to having 5x120mm wheels on a 5x4.75" vehicle with all other factors correct.
Dealing with shitty chinese spacers with thick threads and possible manufacturing flaws or loose tolerances may be a whole other issue and you should probably be extra scrutinous in what you're bolting to your car to make work just for the sake of "fitment" or fashion. At that point all bets are off. I stand by my original statement though considering all other factors are correct.
if the lug does not sit in the center of the hole for the stud the taper on the nut puts stress on the bolt trying to seat properly....
That looks like somebody used a flat or hubcentric style nut on a wheel that required acorn style nuts for lugcentric seating. There are also aftermarket nuts with differently angled acorn faces and or wider or lesser diameters.if the lug does not sit in the center of the hole for the stud the taper on the nut puts stress on the bolt trying to seat properly....
And the one variable not yet mentioned...lug size. I picked up a set of 2013 Camaro rims and tires for my coupe from Craigslist for cheap. (No, I'm not driving on them right now.) The Camaro hubs use M14 lugs vs. the G-body that uses M12. I initially tried 5x4.75 (5x120.7) spacers and saw how deep the lug nuts sat in the counterbores on the rims. I researched acorn-style lug nuts, then looked at replacing the lugs on the adapters. In then end, the right way to do this is to get 1.5 to 2 inch offset adapters with 5x120.7 M12 holes for the G-body hub and 5x120 M14 studs and nuts for the Camaro wheel. I picked up a used set of 255-40-18 tires that more closely match the G-body diameter (and sold the nearly-new Camaro tires, so the tire change was about free...). The wheel adapters were about $150 for a set of four on EBay.
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you missed the point.....when you have a defection on a bolt or stud stress is placed on the whole area and something will fail.
That's basically what I said. Still have yet to see a failure due to .14 mm overall difference. That's my whole point. There are a million factors that can lead to failure... 5x120 with 5x4.75 is not one of them in my experience.
I guess engineers are a waste of time, what do they know about bolt patterns on wheels, if it's close it will fit....
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