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Sarge
03-22-2013, 06:51 AM
Can anybody please tell me what the widest tire size they have been able to fit for the rear tires on 1970 GTO with no modifications, other than maybe rolling the fender lip? Also, what rim offset did you use? What is the ideal tire size for the rear? I am wanting to put on a 19X12" or 20X12".

csouth
03-23-2013, 02:51 PM
You might want to check with

Andrew

https://www.pro-touring.com/showthread.php?40904-1970-GTO-Version-2-0&highlight=gto

or Jon

https://www.pro-touring.com/showthread.php?44437-68-GTO-Project&highlight=gto

They are both helpful here on the forum and might be able to offer some feedback. Reading the treads first may offer an answer.