Camaro & Firebird Fitments
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Bolt Pattern
5 x 4.75" or 5 x 120.65 mm
The numbers in the columns are as follows:
WIDTH ..... OFFSET ......... WIDTH OF TIRE
Front and Rear
7.0" ..... +35 to +40 mm .... 215, 225, 235
7.5" ..... +35 to +45 mm .... 215, 225, 235
8.0" ..... +38 to +55 mm .... 225, 235, 245
8.5" ..... +38 to +45 mm .... 235, 245, 255
9.0" ..... +38 to +56 mm .... 255, 265, 275
9.5" ..... +38 to +56 mm .... 255, 265, 275
10.0" ... +38 to +48 mm .... 265, 275
REAR Only
10.0" ... +38 to +54 mm .... 275, 285
10.5" ... +38 to +50 mm .... 285, 295
11.0" ... +45 to +56 mm .... 315
Z06 Corvette Replicas:
17"x9.5" +50 to +56 mm no problems. 275/40R17.
18"x9.5" +50 to +56 mm 275/35R18 or 285/35R18.
18"x10.5" +50 to +53 mm. Higher than 53 mm will require the BFH mod. 285/35R18s thru 315/30R18. Over 295 may require rolling the fenderlip and will need the BFH.
Y2k Corvette Replicas:
17"x8.5" +56 mm
17"x9.5" +50 to +56 mm
18"x9.5" +50 to +56 mm
17"x11" Wheels
ZR-1 Style for Camaro +50 mm (Known as Grand Sport offset)
ZR-1 Style fo Firebird +36 or +50 mm The wheel well on the "bird" is a little wider.
American Racing TT-2's +45 mm
With 17"x11"s there is always a possibility of needing the BFH and/or fender rolling mods with 315s. If lowered, an Adjustable Panhard Bar becomes a virtual necessity. Some have used the +38 offsets with an 11" wheel but it does stick outside the fender and is definitly not recommended on lowered vehicles. +50 and +56 are the two most common. +50 is the better fit (for the ZR-1 replica).
For road race only applications a 17"x11" at all four corners can be made to fit
Will check on third gen for ya.
