Some portable setups are possible, but accurate alignment requires a level surface, appropriate rear slip capability, correct ride height, and compatibility with the alignment measurement system.

Traditional plates provide free wheel rotation and may use degree scales, while some advanced alignment systems use electronic or integrated measurement methods. Compatibility depends on the alignment system.

For accurate alignment work, the vehicle should be supported on a level alignment surface and the turn plates should be installed or positioned according to the alignment equipment and rack instructions.

Choose plates rated for the wheel loads of the vehicles you align. Passenger-car, light-truck, and heavy-duty applications can require different plate capacities and sizes.

Turn plates allow the front wheels to rotate freely during wheel alignment so steering and alignment angles can be measured without tire scrub affecting the readings.