Guide spacers are one of those "little things" that are often overlooked but can make a big difference in the performance of your car. Guide spacers are useful when trying to set the height of the guide and/or to eliminate unwanted "slop" between the guide post and chassis. We offer two (2) thicknesses - .010" and .025". They can be easily stacked to achieve the optimal thickness for a given guide/car. Made from Teflon (tm) which doesn't require lubrication and has a lower coefficient of friction than spacers made from metal. Designed to fit most popular guides.