The 4.5” Alpine RT4 Long Arm Suspension System excels on the highway, off-road, through the desert, or rock crawling! If that sounds impossible, just remember it’s a TeraFlex suspension system built on decades of research and development resulting in the ultimate suspension with a lifetime warranty. Bolt-on Alpine IR Long Control Arms & Brackets, Front and Rear HD Forged Adjustable Track Bars, and Front and Rear Track Bar Axle Brackets allow full suspension adjustability, while the Front SpeedBumps smooth out unexpected trail bumps. Adjustable Alpine IR Long Control Arms balance front caster angle and pinion angles as well as optimize rear pinion angles, anti-squat geometry, and tire position on vehicles with 3-6” lifts. On higher lifts, Alpine Long Arm Brackets reposition frame-end cont.
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