This is a urethane bushing set used in all of our Jeep Wrangler YJ front or rear shackles in applications where the vehicle is equipped with ProComp springs - this bushing fits the spring. Bushing is 1.500" o.d. x 1.250" tall (not including flange) with a .750" hole that features 8 flute grooves for greasing. Flange is 2" o.d. x .250" thick.