This is a shim kit to enable front and rear alignment for the Ford GT. These shims are all aluminum - just like the factory shims so no need to worry about corrosion due to dissimilar metals. Shims can be combined with OEM shims or stacked to achieve the desired thickness.
The front and rear shims are NOT interchangeable as they are different sizes.
This Ford GT Alignment Shim Kit includes the following;
(4) Front Shims; Thickness: 1.57mm +/- .25mm
(4) Rear Shims; Thickness: 2.38mm +/- 0.12mm