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post #1 of 15 (permalink) Old 11-19-2013, 11:37 AM Thread Starter
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Rim Bolt Pattern 4x83mm (3 1-4 Inches)

Wanted to install my winter tires for 15 inches tires. 2005 LS 2.2 liters...very basic. I checked and everywhere it is said the the rim bolt pattern is 4x100. So I have the right rims. When time to install they did'nt fit. the pattern is like 4x83mm ( 3 and 1 quarter inches).
Any one have some explanation for this and where I can buy replacement wheels for my tires?

Thanks.
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post #2 of 15 (permalink) Old 11-19-2013, 05:22 PM
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I've never heard of a base model cobalt that isn't 4 by 100. Are you sure you got the right rims?


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post #3 of 15 (permalink) Old 11-19-2013, 05:36 PM
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they dont even make a 4x83 bolt pattern. are you sure your rims arent 4x114.3
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post #4 of 15 (permalink) Old 11-19-2013, 05:37 PM Thread Starter
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Originally Posted by Blackbalts View Post
I've never heard of a base model cobalt that isn't 4 by 100. Are you sure you got the right rims?
My replacement rims are 4x100which is as per all specs. But my Wheel hubs bolt measurement is some 3 and 1 quarter inches which mis about 83mm and well measured by my mechanic guy.

I've been doing some search on Google to find out which companiy has that type of rims and nothing is coming out.

This is quite funny hat I can't find any wheels with 83mm bolt pattern, but it's really what I have on my car....
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post #5 of 15 (permalink) Old 11-19-2013, 05:38 PM
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what wheels are on there now? could you snap a pic of them
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post #6 of 15 (permalink) Old 11-20-2013, 11:26 AM Thread Starter
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post #7 of 15 (permalink) Old 11-20-2013, 11:42 AM
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you have 4x100 i had those rims on my old cobalt. Who ever you bought rims from stuffed you with 5x114.
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post #8 of 15 (permalink) Old 11-20-2013, 12:20 PM
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not gonna lie that is super weird. i have no more suggestions, im curious as to the outcome
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post #9 of 15 (permalink) Old 11-20-2013, 12:58 PM
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Only thing I can say is that the new wheels aren't 4x100, take it to a shop if you really want so they can prove that to you.

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post #10 of 15 (permalink) Old 11-20-2013, 04:03 PM Thread Starter
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Only thing I can say is that the new wheels aren't 4x100, take it to a shop if you really want so they can prove that to you.
Winter rims still have their bar code tags and it's 4x100.

Took some mesurements shown over a rule...
Pic one is the car rim distance wich is 3" 1 quater or 83 mm
pic 2 is the distance at extreme ends of the holes on the metal rims which is exactly 100mm.

http://www.camaro5.com/forums/pictur...ctureid=114172

http://www.camaro5.com/forums/pictur...ctureid=114173

Will go at the dealer tomorrow to try to have some explanations.

---------- Post added at 05:16 PM ---------- Previous post was at 05:14 PM ----------



---------- Post added at 06:03 PM ---------- Previous post was at 05:16 PM ----------

OK I've been around a few wheel sites to figure out how to measure the rim holes pattern distance.

As for what I saw, you have to measure the outside of one hole to the center of the opposite hole, and not the next one, for a 4lugs wheel.

My car's are exactly 100mm while the rims, even if the bar code say's 100mm they are 114,5 mm. Looks like this is the answer.

So it looks like it's a tagging problem.
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