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Are there differences between OEM and replica ZR1 wheels?

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Old 11-13-2017, 06:31 PM
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Default Are there differences between OEM and replica ZR1 wheels?

Curious about it for bigger brake clearance. I like the new Wilwood kit that Sam Strano offers but am not sure if it would fit aftermarket ZR1 (c4 style) wheels like it did his stock SS wheels. I know he had to use spacers but OEWheels website says they will not fit upgraded brake systems. Anyone know if the inside of the wheels are different?
Old 11-13-2017, 07:08 PM
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I have the OEM ZR1's in the front and OEWheels replicas in the rear. Except for being 17x11 they look exactly the same from what I remember
Old 11-13-2017, 08:26 PM
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I'm afraid that there are some subtle differences in the design of the back side of the spokes for the front. Hopefully I can find someone with the OE Replicas willing to pull a wheel off to check fitment with a template.
Old 11-13-2017, 11:44 PM
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OEM '96-'99 Camaro SS wheels were a 17x9", 50mm offset wheel. Most (but not all) of the repro "SS/C4 ZR1-style" wheels were/are made in a 17x9.5", 56mm offset (this was stock rear sizing on late C4s, and also front sizing for the Z51 cars.) In addition to this size difference, there have been multiple versions of the repro ZR1-style SS wheels, including deep dish and "squared-off" spoke versions (where the spoke meets the rim portion is more of a defined edge on newer repros, vs. a rounded shoulder on the OEM and early repros.) However, I can't say for certain whether or not the inner spoke design would be different enough to cause fitment issues in this application.



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