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

C5 wheel offset?

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Old Dec 11, 2004 | 11:35 PM
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Default C5 wheel offset?

Does anyone know what the factory C5 wheel offsets are? Ft and Rr?
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Old Dec 11, 2004 | 11:39 PM
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I meant to put that on the C5 section. On this section I meant to ask how do the C5 wheels fit backspacing wise on a C4? I believe the offsets may be different? Any info?
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Old Dec 12, 2004 | 12:06 AM
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Its very close to the 88-96 offset, they should fit those years with no problems.
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Old Dec 12, 2004 | 08:55 AM
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I believe its about 65mm.
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Old Dec 12, 2004 | 06:26 PM
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Thanks for the info guys!
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Old Dec 12, 2004 | 10:03 PM
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Originally Posted by JUAN J SANCHEZ
I meant to put that on the C5 section. On this section I meant to ask how do the C5 wheels fit backspacing wise on a C4? I believe the offsets may be different? Any info?
Depends on what C5 wheels you are referring to. The Z06s are a perfect fit. The fronts (17x9.5") have a 54mm offset and the rear (18x10.5") have 58mm offset.

The other C5 wheels have a 56mm offset in the front (17x8.5") and a 65mm offset in the rear (18x9.5"). The rears will sit in a little bit, but they'll fit just fine.
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Old Dec 12, 2004 | 11:10 PM
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Thanks again guys! As you may have noticed I'm trying to compare the offsets to my Fikse wheels. I purchased the wheels here on the forum and although the wheels are in fabulous shape and look great, the deal went bad when I couldn't get ahold of the seller for about a month after I paid for the wheels and once I recieved the wheels they were missing the caps (3), it goes on and on basically I feel lucky to have at least recieved the wheels. Anyway I'm concerned about the offset on my wheels especially the fronts! I may have to wind up using a 1/2" spacer in front, depending on how they look once they're on, but that's ridiculous, considering I paid $2500 for the wheels when it was all said and done, and Fikse wants $300-600 to change the offset! If the ZO6 wheels tuck in nicely on a C4 ( I'm looking for flush or maybe 1/4" in with fender) not sitting in too far, then my 69mm rear offset should work although it's 11mm further in, it's also 1/2" further out so my rears should be OK! The front's when compared to a Z06 have 21mm x-tra offset and that's about .800" and compared to C5 it's 19mm (.700") I'm not sure how the Z06 or C5 wheels look on the front of a C4 but hopefully they don't sit in too far ( look funny) and I will get away with a custom 1/2" spacer or none at all! Thanks again guys!
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Old Dec 13, 2004 | 10:53 AM
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The Z06 fronts with their 54mm offset are virtually identical to the 17x9.5 sawblades with the 56mm offset. 2mm is a neglible difference in this case.

On the rear, from what I remember from your other post, you might run into trouble with a 69mm offset on an 11" wide rim. It will probably rub on the inside so be carefull there.
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Old Dec 14, 2004 | 12:49 AM
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Thanks again ! It will take a trail fit before I can make any assumptions!
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