Even if the bolt pattern is the same between a 2005 Mustang and a 1999 Crown Victoria, the offset and backspacing are almost certainly different. These cars have very different suspension geometries and wheel well sizes. Trying to use the wrong offset wheels can lead to:
* Rubbing: The wheels might rub against the suspension components, brake calipers, or the fender wells, especially when turning or going over bumps.
* Unsafe handling: Improper offset can affect the handling and stability of the car.
* Damage to the car: Constant rubbing can damage the tires, wheels, and suspension parts.
Finding the Offset:
You need to find the offset specifications for both the 2005 Mustang wheels and the 1999 Crown Victoria. This information is often:
* On the wheel itself: Look for markings cast into the wheel. It might be stamped with an offset number (e.g., +35mm, -5mm).
* In the wheel's documentation: If you have the original documentation for the Mustang wheels, it should specify the offset.
* Online wheel databases: Websites like Tire Rack or similar sites often have databases that allow you to search by year, make, and model to find wheel specs. Enter the details of both vehicles to find the offset and other specifications.
* Your car's owner's manual: This should list factory wheel specifications which might include offset. This isn't as reliable for the Mustang, since you only have the wheels.
In short: Don't assume they'll fit just because the bolt pattern might be the same. Find the offset and backspacing information before attempting installation. Failing to do so risks damage to your car and could be dangerous.
