20 inch Wheel and Tire Package for 2006 Mustang GT

bushdog66

New Member
Jun 11, 2011
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Georgia
Hello all,
Recently purchased a 2006 GT (30,000 miles and all stock) and I am interested in a 20 inch wheel and tire package that Cruzin Concepts is offering (Black Godspeed Omega Wheel and Tire Package Sale (20" Deep Dish NT05 Tires) 05-2011). I'm concerned about the rear tire size as it relates to the rim size. They are Nitto 315/35/20's on a 10 inch rim. Nitto's website states that the 315 should be on a 10.5 inch rim. Cruzin Concepts seems to be pretty reputable and even sponsor some of the mustang forums but I've learned not to assume that just cuz it's for sale doesn't mean it should be installed! My questions are:

1. Is it okay to go .5 inches smaller on rim size? Please explain why or why not if possible.
2. With 315's in the back, will there be clearance issues and if so is there a way to safely resolve them?
3. I want to get rid of the extra space in the wheel well so I'm gonna lower it with springs; how low do I go?

I've attached a pic of the look (wheels and car heighth) I'm tying to achieve in case it helps to answer my questions. Also, this is my first post so I apologize if my post is not formatted correctly. Thanks in advance for any help you can give me!

Respectfully,
William
 

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mustangdave

My rearend needs a stud and two nuts.
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You will want an adjustable panhard bar to center the rear end. It is off from the factory and lowering with wider wheels could cause clearance issues. Lowering 1.5 inches is no problem; beyond that I'm not sure.
 

bushdog66

New Member
Jun 11, 2011
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Georgia
I'm referring to the extra wheel space on my stock mustang! The wheel space on the pics I attached is what I'm looking to achieve.