Jeep Wrangler TJ 1997-2006, Rear Upper Control Arm Kit, Double Adjustable, Poly/Poly. For 2" to 8" Lifts. Black Powder Coated. Made in the USA. Make: Jeep Model: Wrangler Years: 1997-2006 Location: Rear Upper These control arms are fabricated from 1.500" OD x 0.120" W DOM tubing in the USA. Both ends have threaded poly bushing to give a total adjustment range of 12.9"-15.3". These arms can be used for (covers) 2-8" of suspension lift.. Note: Double adjustable poly bushings are prone to loosening the jam nuts during extreme articulation. If these arms are used in off road applications, they should be inspected after every use for tightness. Marking a line across the jam nut and the control arm will provide a quick visual reference to see if it has moved.