1987 IROC Z28 Lug Nuts

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01-16-2010, 03:51 PM

RJ_Moore

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Car: 85 SC and 87 IROC Both T-Tops

Engine: 305 V8 H Code and TPI F Code

Transmission: 700R AT/OD and 5 Spd.

Axle/Gears: 7.625

1987 IROC Z28 Lug Nuts

Hello, I have a 1987 IROC Z, and need new lug nuts. What specifications do I need to pay attention to? I see there are a lot out there, to choose from, but I don't know the size, thread, etc. that I need to matchup.

Please advise. Thank you. Richard.

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01-16-2010, 03:57 PM

JamesC

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Car: Met. Silver 85 IROC/Sold

Engine: 350 HO Deluxe (350ci/330hp)

Transmission: T-5 (Non-WC)

Axle/Gears: Limited Slip 3.23's

Re: 1987 IROC Z28 Lug Nuts

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Originally Posted by RJ_Moore

...need new lug nuts. What specifications do I need to pay attention to? I see there are a lot out there, to choose from, but I don't know the size, thread, etc. that I need to matchup.

OE wheel studs are 12mm x 1.5 right hand thread.

JamesC