Delrin bushings eliminate deflection and stiction resulting in significant handling and ride quality improvements.  Self-lubricating Delrin infused with Teflon is far superior to OEM rubber and poly bushings. OEM rubber bushings suffer from deflection when new. Over time, rubber bushings deteriorate and can seize resulting in stiction. Poly bushings resist deflection, but require regular lubrication or they will squeak and cause stiction.  These Delrin bushings never need lubrication, never seize and have an exceptionally long service life with zero maintenance.  Includes bushings, inner sleeves and outer sleeves for front upper and lower factory control arms.