How to make 315's fit your Camaro/Trans-Am with no rubbing
The simple modifications required here take very little time and insure that you won't suffer tire damage/rubbing issues with your new 315's. Some people may never experience rubbing with 315's or say that some brands run smaller than others (Nitto 555's ect). I say just spend the 30 minutes and do it right.
Tools required:
-BFH (Big Fing Hammer)
-5" Angle Grinder (picture below)/ Safety Goggles
-Rubberized Undercoating
-Jackstand
OPTIONAL- Adjustable Panhard Bar. You will need this if you notice you need to recenter your rear. I recommend getting one anyways.
PLEASE NOTE
If you are lowered:
-Fender rolling may/will be required
-Adjustable Panhard Bar is NOT optional
-Alot of BFH will be required
I believe the Trans-Am has slightly more room in the wheel well than the Camaro, but I recommend taking these precautions anyways.
315 series tires DO NOT fit 9" or 9.5" wheels.
REAR Only
10.0" ... +38 to +54 mm .... 275, 285, 295
10.5" ... +38 to +50 mm .... 285, 295, 305, 315
11.0" ... +45 to +56 mm .... 305, 315, 335
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).
