Brodizzle83 Posted June 22, 2018 Report Share Posted June 22, 2018 Anyone know what length wheel studs came on 1gen Grand Prix? I cant really find out, I just know that when I search the size, two sizes come up: 34.5mm and 41.5mm length. I'm kinda hoping its 34.5 so I can get a set of 41.5's to fit my new wheels... Sent from my SM-G955U using Tapatalk Quote Link to comment Share on other sites More sharing options...
Imp558 Posted June 22, 2018 Report Share Posted June 22, 2018 Why don't you tap one out and carry it in? Then see if they can match it up. Quote Link to comment Share on other sites More sharing options...
Mitchellman Posted June 22, 2018 Report Share Posted June 22, 2018 My stock ones were the 41.5mm length. I got ARP wheel studs that are 63.5mm(2.5in) in length. I don't have to wonder if my wheels will stay on anymore! Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted June 24, 2018 Report Share Posted June 24, 2018 41.5'' on the 1994 OEM wheel studs I just measured for what it's worth. Quote Link to comment Share on other sites More sharing options...
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