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For questions like this, you'll find a lot of information in the free GM Heritage Vehicle Information Kit for your model year. (Link is in my signature.)
Last edited by barkingrats; Dec 2, 2024 at 10:58 PM.
Which wheels? I have 20 lugnuts for my aluminium slot wheels and 5 lug nuts for the steel spare wheel.
And some 77's came with steel wheels! And Some like mine came with Aluminium slots and a steel spare!
So, which wheels All 77's are NOT the same!
Wheels like this???
If you can give me the size for both the steel wheel lug nuts oem and the size for the aluminum wheel size lug nuts oem
The thread is the same for either the open-end lug nuts on steel wheels and the chrome cap nuts used on the aluminum wheels. Here are the service parts numbers for Corvettes from '53 to at least '81:
