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wheel bolt pattern issue.

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Old Nov 14, 2012 | 06:10 PM
  #1  
Berlyn0963's Avatar
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
wheel bolt pattern issue.

These rims seem to fit but they also seem off just a hair.. or is it just me? any ideas? do they make wobble nuts? its a bmw type rim but it says it should fit on chevy from the auction i got it from.

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Old Nov 14, 2012 | 06:13 PM
  #2  
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: wheel bolt pattern issue.

What rims are "these rims"?
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Old Nov 14, 2012 | 06:24 PM
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
Re: wheel bolt pattern issue.

wheel bolt pattern issue.-2012-11-13-17.39.03.jpg


Size: 18"x8.5" front, 18"x9.5" rear

Off Set: +13mm front and +15mm rear

Bolt Pattern: 5x120

Hubsize unknown.

Seems like the lugs dont even seat properly.. like its off measurement or somethin.
here is a link to the ebay listing i got it from, http://www.ebay.com/itm/251157166867...84.m1423.l2649 the thing says Iroc and i even called the guy and he said i dont gotta do any mods.

Last edited by Berlyn0963; Nov 14, 2012 at 06:29 PM. Reason: link
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Old Nov 14, 2012 | 06:34 PM
  #4  
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: wheel bolt pattern issue.

BMW is 5x120 Ours is 5x120.65

It is because those are the BMW bolt pattern which is very close but not quite right. Many people have run BMW wheels are experienced little or no problems, but one member took it a step further to correct the lug pattern misalignment issue.
https://www.thirdgen.org/forums/whee...t-pattern.html
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Old Nov 18, 2012 | 11:13 AM
  #5  
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
Re: wheel bolt pattern issue.

i certainly dont have the resources to redrill my wheels. they were gotten cheap from a drunk ebay purchase. im thinking the front wont go over the hubs on the rotor.i found out its a 74.1mm wheel hub bore and a 70.3 stock vehicle hub... hubcentric spacers to clear the center front hub?? and maybe a set of wobble nuts? any ideas?
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Old Nov 18, 2012 | 03:53 PM
  #6  
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
Re: wheel bolt pattern issue.

front hubs are also an issue i found out today,maybe 1.5 inches of hub on the car that protrudes and wont let the rim slip on the car. idk wtf to do about that other than find a huge spacer..
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Old Nov 19, 2012 | 07:15 PM
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//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: wheel bolt pattern issue.

well, sounds like you will be spending some money to make them fit. spacers probably wont do you any good because the wheels will be too far out. You can take them to a maching shop and have the hub opening opened up a bit to fit the front hubs.

IF you do that, and use hubcentric rings to locate the wheels, you can use the wobble nuts to deal with the 120-120.65 bolt issue if you want.
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Old Nov 19, 2012 | 08:50 PM
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From: Huntsville, AL
Car: 89 Black IROC-Z convertible
Engine: 305 TBI
Transmission: Auto
Re: wheel bolt pattern issue.

I'd try to go back to the seller as they are not as described, and explain what's going on...Or relist them and buy the right ones.
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Old Nov 19, 2012 | 08:52 PM
  #9  
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: wheel bolt pattern issue.

Originally Posted by Richboll
I'd try to go back to the seller as they are not as described, and explain what's going on...
Good choice!
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Old Nov 19, 2012 | 09:26 PM
  #10  
cerhart's Avatar
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Posts: 58
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Car: berlinetta
Engine: Lt1
Transmission: t56
Axle/Gears: 3.42
Re: wheel bolt pattern issue.

Lots of people like to think that bmw wheels fit the Chevy bolt pattern they will go on but WILL put alot of pressure on the studs commonly breaking them regardless of the lug nuts u use I would take them back.
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Old Nov 20, 2012 | 05:52 PM
  #11  
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
Re: wheel bolt pattern issue.

Ok my issue is not resolved.
One thing i gotta pay shipping back, and that means i paid shipping twice which costs almost as much as the wheels themselves. This is rediculous. That Listing said IROC.. im mad but i think im gonna look into options and price out a shop to machine the front wheel hub bores out wider, (since thier different then the rear) to clear the hub on the car. then figure out how much adapters will be to go from 120.65 to 120 so i dont have to find wobble nuts.. which arent sold anywhere in my area, and i cant even find them on ebay.

any good wheel machine shops in Maryland or DMV area?

( i have no idea why they send in a set of rims where two have smaller /different hub bores.. )
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Old Nov 20, 2012 | 06:10 PM
  #12  
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: wheel bolt pattern issue.

File a complaint with eBay directly & do not take the Sellers word as final, because they DID misrepresent the wheels.
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Old Nov 20, 2012 | 06:25 PM
  #13  
Berlyn0963's Avatar
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
Re: wheel bolt pattern issue.

wont i have to ship these back to get my refund? im out another bunch a money anyway.
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Old Nov 20, 2012 | 06:30 PM
  #14  
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: wheel bolt pattern issue.

You misunderstand.....

If eBay deciders in your favor, which they will because they were falsy advertised, eBay can refund ALL the fees & make the Seller cover return shipping.

Don't believe me? Well....You won't know until you try. NEVER lay down & say a seller on eBay or Amazons word for anything, or you will just get run over.

Don't just sit back & let them run all over you.
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Old Dec 12, 2012 | 02:35 PM
  #15  
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Joined: May 2011
Posts: 60
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From: Pueblo, CO
Car: 1992 Pontiac Firebird
Engine: 400 sbc
Transmission: 700r4
Axle/Gears: 3.73 Limited-Slip
Re: wheel bolt pattern issue.

I am running into the same kind of issue. My bolt pattern is correct but the hub on the front is to big and I can't fit it through the rim. I didn't know if a fourth gen was different and that would work? I really don't want to make the center hole on my rim bigger because the value of the rims will go down but I just don't know what to do.
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Old Dec 12, 2012 | 03:53 PM
  #16  
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From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: wheel bolt pattern issue.

n/m
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Old Dec 13, 2012 | 05:35 PM
  #17  
//<86TA>\\'s Avatar
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: wheel bolt pattern issue.

Originally Posted by 1992PonFirebird
I am running into the same kind of issue. My bolt pattern is correct but the hub on the front is to big and I can't fit it through the rim. I didn't know if a fourth gen was different and that would work? I really don't want to make the center hole on my rim bigger because the value of the rims will go down but I just don't know what to do.
What wheels? What specs? If they don't require a spacer to fit the offset, your options are to sell them, or have the wheels opened up to fit the hub. That's it. If they are 4th gen wheels, you mentioned 4th gen? They will need a 2" spacer to fit the car, and the spacer can be had with a larger opening to cover the hub
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Old Dec 13, 2012 | 07:33 PM
  #18  
Berlyn0963's Avatar
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Joined: Jan 2002
Posts: 257
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
Re: wheel bolt pattern issue.

I decided to keep the wheels and have the machine shop mill the fronts so the hub can slip thru farther, and i used a 1 inch spacer to make up the rest of the difference. the rear has no mods only a plastic wheel ring ,74mm to 70.3. 245/40 fronts and 285/35 rears

wheel bolt pattern issue.-2012-12-10-15.47.58.jpg

wheel bolt pattern issue.-2012-12-12-17.39.56.jpg

wheel bolt pattern issue.-2012-12-09-14.46.56.jpg
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Old Dec 14, 2012 | 03:35 PM
  #19  
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From: Everett, WA
Car: 87' IROC
Engine: L98
Transmission: T56
Re: wheel bolt pattern issue.

Originally Posted by Berlyn0963
I decided to keep the wheels and have the machine shop mill the fronts so the hub can slip thru farther, and i used a 1 inch spacer to make up the rest of the difference. the rear has no mods only a plastic wheel ring ,74mm to 70.3. 245/40 fronts and 285/35 rears
I would lose the BMW center caps. Other than that, no bad.
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