The Camaro Club (UK)

A very handy list of many cars and their lug patterns etc (inc. Camaro's):

http://adaptitusa.com/referencebook.htm

Key Info for us:

CAMARO, 67-81
Lug pattern: 5 X 120.7mm (5 X 4 3/4")
Lug thread: 7/16-RH
Centre Bore: 70.3mm

CAMARO, 82-02
Lug pattern: 5 X 120.7mm (5 X 4 3/4")
Lug thread: 12mm X 1.5
Centre Bore: 70.3mm

Here's a great link explaining how bolt patterns are measured, what offest is and how it's calculated (includes a chart) etc:

https://www.rsracing.com/tech-wheel.html

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I found another site once ages ago that had most of that but the backspacing (offset) instead of the bolt thread sizes...

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“You only live once, but if you do it right, once is enough.”

That would be useful too! If you find, do post it and i'll merge it into the main post. I've added another link that helps with identifying offset.

_________________
How to post pics: When writing a message, scroll down and use the "attach file" option. Where possible, a photo sharing service can be used such as Flickr, Imgur etc. The image location (usually ending in .jpg) can be copy and pasted between the ][ brackets that appear when you click the 'Img' button (you can find this button at the top of the message box).

How to post youtube vids: Click on the 'youtubeHD' button at the top of the message box and in the middle of the ][ brackets that just appeared, copy and paste everything from the youtube web address that appears after the = sign i.e if this is the url: https://www.youtube.com/watch?v=K2cNqaPSHv0 just copy "K2cNqaPSHv0").