I'm going to install a rear control arm boxing kit from H&R. (a turbo buick sponsor) I have 2 wierd questions. What the heck are the washers for?It looked to me that they go under the plates for the lower arm hold the plates at the correct height and place when welding? What is a good durable brand of paint to coat the arms with. I want them to look stock, or at least like they belong and havn't been hacked up when done.