C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Changing tire size

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Old Nov 8, 2010 | 07:09 PM
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Default Changing tire size

Hi all ok if I cha. the tires and rims on my 86 witch are 16" to 17" will they fit ??? any outher concerns??
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Old Nov 8, 2010 | 07:15 PM
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mine fit good on my 87 w/275x40x17 front and 315x35x17 rear, even lowered it 2" still no problems
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Old Nov 8, 2010 | 07:29 PM
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Originally Posted by bowkill
are 16" to 17" will they fit ??? any other concerns??
Tires are not a problem
Depending what rims ( OEM or aftermarket ) you use, you may need adapters to position wheel in correct position ( for appearance ) because factory 17" rims have different offset to 16" ones
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Old Nov 8, 2010 | 07:39 PM
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I'm running WRO's , no adapters , measure your back spacing prior to purchase
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Old Nov 8, 2010 | 07:48 PM
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You can find the 17" ZR-1 style 5-spoke wheels made just for the 84-87 cars with the proper 38mm offset. Going this way will allow the wheel to sit properly in the wheelwell with no need for adapters.

A 275/40-17 tire has very nearly identical dimensions as the OEM 255/50-16 tire so this 17" size wheel/tire combination won't mess up the speedometer or odometer readings. Stay with the same size tire at all 4 corners so you can rotate the tires as needed.
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Old Nov 8, 2010 | 08:15 PM
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Originally Posted by oldalaskaman
measure your back spacing prior to purchase
16"x8.5" 32mm (6.0" backspacing)
16"x9.5" 38mm (6.7" backspacing)

17"x9.5" 56mm (7.4" backspacing)
17"x11" 50mm (7.9" backspacing)
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Old Nov 8, 2010 | 10:48 PM
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Put some 24" dubs on it ............ ...........
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