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Lug Nuts

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Old Sep 28, 2011 | 08:05 AM
  #1  
mr z28's Avatar
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Joined: Apr 2010
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Car: 74 Nova prostreet 87 Iroc Z28
Engine: 427 671 blower 350 Built
Transmission: 700R4 both
Axle/Gears: Dana 60 an a 323 posi.
Lug Nuts

I have a 87 iroc with iroc wheels what size lug nuts do i need an do i use washers. i have some but dont know if they are the right ones send pic. if any Thanks.
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Old Sep 29, 2011 | 06:19 AM
  #2  
svandorst's Avatar
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Joined: Mar 2011
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From: Union City, CA
Car: 1992 Camaro RS
Engine: L98 5.7 350
Transmission: 700R4
Re: Lug Nuts

Originally Posted by mr z28
I have a 87 iroc with iroc wheels what size lug nuts do i need an do i use washers. i have some but dont know if they are the right ones send pic. if any Thanks.
The lugs thread pitch has gotta be, 12x1.5

I don't think it matters much if you use an open ended lug nut or a closed end? I had open ended lugs on my stock RS wheels, but now have closed end locking lugs on my Z06 wheels. You don't use any washers.
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