Are you doing your wheel alignments correctly? Do you know what slip plates and turn plates are? After lowering your car off the jack your suspension and wheels will not be in their natural position due to the way they tuck up under the car when there is no load present. If you have just made some changes to your caster, toe, camber or other suspension components and want to measure and double-check they are correct, then this small issue will give you false readings and inaccurate results. A co