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mtcwby · 12-18-2009, 01:17 AM

The speedo is not effected by this change. The stock rears are 28.6" diameter, the 305's are 28.4" diameter. But the stock tires were 1 mph off on the speedo compared to my GPS. But now with the 305's the speedo reads exactly the same as my GPS. The tires ride very smooth and corner extremely well. There are no clearance issues.

305/35ZR20's on the rear rims
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275/40ZR20's on front rims
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Front

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Side view
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12-18-2009, 01:17 AM	#889
mtcwby High on "The Camaro Life" Drives: 2010 2SS, IOM, LS3, Vortech, LG cam Join Date: May 2009 Location: Big Sandy, MT & Yuma, AZ Posts: 1,028 View My Garage	Wider PZeroes on my Stock wheels The speedo is not effected by this change. The stock rears are 28.6" diameter, the 305's are 28.4" diameter. But the stock tires were 1 mph off on the speedo compared to my GPS. But now with the 305's the speedo reads exactly the same as my GPS. The tires ride very smooth and corner extremely well. There are no clearance issues. 305/35ZR20's on the rear rims 275/40ZR20's on front rims Front Side view __________________ "The democracy will cease to exist when you take away from those who are willing to work and give to those who are not."-Thomas Jefferson------Going Strong at 39,250 miles