Iron Rock Off Road rear adjustable control arms are constructed from 1 7/8" x 1/4" (lowers) 1 1/4" 3/16" (uppers) DOM tubing. The lowers feature a clamping threaded insert and the uppers use a pinch bolt, both eliminate that pesky Jam Nut! They also come with a IRO flex end to reduce any possibility of binding under articulation. Each tube is tapped to accept either a 1 1/4" - 12 or 1" - 14 male threaded flex end that is plated with yellow zinc and finished with a corrosion resistant top-coat process . Use these in one of our standard kits to improve your ride and flex and have the ability to adjust your pinion angle, position your axle under the vehicle, and adjust your caster. You can feel confident with your purchase because these come with the same "Bend or break a control arm on or off road, we will replace it," warranty that our long arms come with!
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