Spring Rubber, 2.5 in Barrel Spring Durometer:90(BLUE) Tight Helix springs have a

Tight Helix springs have a increased coil count for quicker response

Allows the user to safely set the pre-loaded pressure in the cooling system once it is warmed up to 180-185 degrees

• Must use mounting bracket 019-180-0281-5801 to convert to 3

•Stainless steel or Thermlock piston

Spring Rubber, 2.5 in Barrel Spring Durometer:90(BLUE) Tight Helix springs have aMade from the same high quality material as RE Suspensions bump stops, spring rubbers are offered to fit 2. 50" coil over or new, 2. 50" barrel springs that are popularly used in asphalt and dirt racing. Cross drilled holes allow tie wrapping the rubber in place, while creating a method for removal during quick pit stops.