Thanks for all the info.Chances are the wheels you're considering are labeled "rear only" due to their width and/or offset specs as others have alluded to. The front and rear of the S550 wants different offset specs the wider the width of the wheel becomes. For example, our SM-10 comes in two different 19x11" offerings. The first is 19x11" ET26, which fits up front without any spacers, but does not fit the rear of the car. Our second version, 19x11" ET52, directly bolts onto the rear of the car, but can also be used up front when combined with extended wheel studs and spacers to create a rotatable fitment, which is advantageous for tire life. Spacers are required here because without them, the wheel would hit the strut since it normally sits 26mm closer than the ET36 wheel would. 52-26+26mm.
When spacers are applied to a high offset wheel, the result is the same effective look as it would be with a low offset wheel and no spacers. As an example, the blue car is using 19x11" ET52 at all four corners with a 25mm spacer on the front.
Meanwhile, the red car is running 19x11" ET26 front and 19x11" ET52 rear.
- Cory
On their individual wheel page, scroll about halfway and on the right side there will be a "Tech Specs" menu that you can expand and you will get all of the details of the wheel.
At +48 on the front I would think a spacer would be a must, and even with 5mm it would be cutting it close with typical 285 tires on 10 inch width wheels.On their individual wheel page, scroll about halfway and on the right side there will be a "Tech Specs" menu that you can expand and you will get all of the details of the wheel.
Unless these are some crazy spec (which I doubt since they are made for the Mustang) then they will fit fine on the front of the car. The ones in the example below are AM 19x10 with +48 and should fit just fine, or at the most you will need a small 5mm spacer.
I have a 19x10 +40 up front with 285s, and it's got room for days to the strut. Even with 2.5* of camber, it still fit comfortably.