1. Both the front and rear suspension may be adjusted through their designed range of adjustment by use of factory adjustment arrangements or by taking advantage of inherent manufacturing tolerances. This encompasses both alignment and ride height parameters if such adjustments are provided by the standard components and specified by the factory as normal methods of adjustment. However, no suspension part may be modified for the purpose of adjustment unless such modification is specifically authorized by the factory shop manual.

2.If offered by the manufacturer for a particular model and year, the use of shims, special bolts, removal of material to enlarge mounting holes, and similar methods are allowed, and the resulting alignment settings are permitted even if outside the normal specification or range of specifications recommended by the manufacturer. If enlarging mounting holes is specifically authorized but no material removal limits are specified, material removal is restricted to the amount necessary to achieve the maximum factory alignment specifications. The use of alignment lockout kits is allowed, provided it does not allow adjustment beyond what is capable with the factory hardware.

3. Ride height may only be altered by factory adjustments or as incidental to allowed modifications.

4. Changes in alignment parameters that result directly from the use of the allowed components are permitted.

5. For strut-type suspensions, either camber bolts or camber plates may be installed, provided they are a commercially available product intended for the specific application. Resulting ride height changes from installation are permitted. For camber bolts, modification of the strut ears is not permitted unless specified in the service manual or a TSB by the manufacturer, and a maximum of one camber bolt per corner is allowed. For camber plates, any type of bearing or bushing may be used in the camber plate attachment to the strut. The drilling of holes to allow installation is not permitted. The center clearance hole may not be modified.