Pontiac GTO 2004-2006 The Modern Goat

Biggest Tire Size options

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Old 10-30-2021, 06:24 PM
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Default Biggest Tire Size options

So after a couple of years now my GTO has come to the point where it makes waaayyyy to much power for the stock suspension setup. I am switching to a rear Coilover setup with Mini tubs. Anyone here running this with a 15in wheel? If so what is the tallest and widest tire you can fit in the rear. Currently with the stock setup i can clear a 26x10r15 but with 1100whp i cant make it off the line at all without spinning. Thanks for the help.
Old 11-01-2021, 12:10 AM
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Originally Posted by Slo 6.0
So after a couple of years now my GTO has come to the point where it makes waaayyyy to much power for the stock suspension setup. I am switching to a rear Coilover setup with Mini tubs. Anyone here running this with a 15in wheel? If so what is the tallest and widest tire you can fit in the rear. Currently with the stock setup i can clear a 26x10r15 but with 1100whp i cant make it off the line at all without spinning. Thanks for the help.
You do understand that your question completely depends on the aftermarket mini tubs and coilovers? Are you really asking what you can fit under random unknown aftermarket parts with no other specific info?
Old 11-01-2021, 12:40 AM
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VZ coil over kit and the GForce mini tubs.
Old 11-03-2021, 03:43 AM
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Originally Posted by Slo 6.0
VZ coil over kit and the GForce mini tubs.
I don't have your answer, but now that the necessary info is in the post, I know there are people here who do.
Old 11-04-2021, 08:11 PM
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I have the Gforce tubs, coilovers, and modded trailing arms that allow for a 315/40/18 Toyo TQ on a 12 inch wheel to fit. I could go 335 but it will be close. Traction has more to do with rear weight bias, tire compound, and suspension setup in these cars although going to a 28" tire probably wouldn't hurt.
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Old 11-18-2022, 08:33 AM
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I spent a lot of time trying to fit the widest tire I could. My combo includes GForce tubs and lower control arms and coli overs, 1/2" offset spindles (shorter), and widened 19" VRM710's (creating a custom offset). I maxed-out with Nitto 345's under a carefully trimmed rear quarter wheel well lip.No interference / rubbing anywhere.


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