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Given two grandsports not sure if I can use them, measurements within

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Old 02-02-2008, 07:28 PM
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Default Given two grandsports not sure if I can use them, measurements within

A friend at work recently gave me two grandsport wheels. At first glance they looked the same. I looked a little closer and the lugnut area looks different. Can anyone tell me what these are made to fit. Will I be able to make these work. Where can I buy one more of each.

Wheel 1

From inside lip to hub is a shade more than 6 3/8", Wheel is just under 10.5" wide

Wheel 2

From inside lip to hub is a shade more than 7 5/8". Wheel is just under 10.5" wide

What have I got here? Should I sell them or try to find more to match? What size tires would fit on these?

Josh
Old 02-02-2008, 07:41 PM
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look on the inside of rim or somewhere on a spoke, should be the offset number.
probably a 36mm offset on one and a 50mm offset on the other, but the numbers should be imprinted somewhere on the back of the rim.

good luck
Old 02-02-2008, 07:44 PM
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If they are the 11 Grand Sport ZR-1 and you deside to sell them I might be interested.
Old 02-03-2008, 11:17 AM
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What do you call the width on these things? I thought they were 9.5" but they measure all most an inch wider.
Old 02-03-2008, 01:21 PM
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Ok, I looked at the back of the wheel. Not sure why I didn't think of that first. One wheel says +38mm and the other says +56mm. Now that I know what they are I will just do a search and see what they will fit.

Josh
Old 02-03-2008, 05:18 PM
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they are both 17x9.5 rims.......11's are 36mm and 50mm. hope that helps you pair them up now.

most people use the 56mm for the front. i THINK the 38mm will work up front but is considered aggressive. maybe for a big brake kit, not sure.
Old 02-04-2008, 08:35 AM
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The overall width of a wheel is usually ~ 1" wider than advertised. The Advertised width of a wheel is from the INSIDE surface of each wheel bead.

So those wheels are 9.5" wide and a 275/40ZR17 tire will fit perfectly.

The 38 mm offset works on all four corners of an F-Car. the 56 does too, but looks tucked in.
Old 02-05-2008, 06:49 PM
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Last question about these wheels. They both also say "OEC Wheel" on the backside of the spoke. Does this mean they are made by OE Concepts? I am asking because it want to make sure I get the same design wheels.

Josh




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