Need Some Help on Tire Clearance

[04YellowGT]

I have a 2011 GT with 20X11 Bravado Americana in back and 20X9.5 up front. I need new tires BAD. I have a set of Mickey Thompson Street Comps and the SUCK! The tires are practically brand new but they don't hook for anything. The car is dangerous with these tires out back and the it isn't even that fast.

My question is what is the widest tire I can put out back with out rubbing. I also have Eibach Sportlines. I was looking at 305/35/20 MT ET Streets will this be a problem

 

[Ohio Snake]

I have 12 GT500 running 305/35/20 out back with no issues.


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[04YellowGT]

Anybody else. My main concern is the offset of these rims.

 

[Rct851]

What is the offset of the rims?

 

[Ohio Snake]

Anybody else. My main concern is the offset of these rims.

I did not mention: The rear offset is +50 (20x10.5) and the front is +40 (20x9.5). The rims are Shelby Venice staggered.


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[KG145.0]

I run 305 35 20 Mickey Thompson's on a 20x10.5 +45 with no rubbing lowered on steeda ultralites . It's flush.. you have a little more offset so you may be fine

 

[04YellowGT]

Thanks for the help everyone. Looks like the 20x11s are +55mm and the 20x10.5 are 45mm+ .

This stuff is new to me. My other cars always had OEM rims and stock suspension so I never had to worry about this.

 

[Rct851]

They will fit. The wheels will need to be installed with the car lifted under the axle. They won’t go on if the axle is hanging.

*** I’m confident the rears will fit. Not sure about the front

 

[BigmotoXer]

On my 2011 gt I had STR 20x10.5 with +40 ...using 305/35r20 rear tires on eibach Pro Springs... and I ended up having to use 1/2" coil spring pad/spacer to keep the tires from rubbing the fender... Keep in mind those weren't MT, they were tires that I put on temporarily until I could get better ones, some cheap brand. Maybe my offset sucks tho?