What Size Tires Can I run on the GT350 With 20" Wheels

[RR350]

Alright guys, I've searched the forums and google, and haven't found much regarding 20" fitment on GT350's. I just recently ordered some 20x11 Vossens. My goal is to run a 305/35/20 squared, and hopefully not have to lower the car. I am open to run a 305/30/20 Squared set up and buy the FP lowering springs also. So my ultimate questions...

1. Can I run a 305/35/20 squared without lowering the car?
2. If I can't, can I run a 305/30/20 squared with springs?
3. Or do I just need to run a 295/30/20 - 305/30/20 Set up with FP springs?

Thanks in advance for any help, I'm trying to get everything set up before the wheels are done sometime in the next 4-5 Weeks.

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[RR350]

Bump

Wheels are still 4-5 weeks out but I need to know what tires to go with. anyone running a 20" wheel??

 

[Bender]

You may run into some issues with 305/35/20 at that tire is is about 1.25 inches larger in overall diameter. 305/30/20 is only a few hundredths of an inch larger overall diameter and shouldn't cause any issues.

Depending on your new wheel offset a 305 will work just fine up front as that is what the R model has stock. However the wheel sits further towards the fender edge on the R spec wheels compared to standard 350 wheels. A small spacer may be necessary at best. Hopefully nothing else

The FP lowering springs are going to make it even harder to clear w/ larger diameter OD tires.

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