QA1 MOD Series Rear Pro Coilover Kit, 170 lbs/in Rate - 1981-1987 GMC Caballero eibach-sportline-coil-springs-front-&-rear-sway-bars 2010 Scion xD

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QA1 MOD Series Rear Pro Coilover Kit, 170 lbs/in Rate - 1981-1987 GMC Caballero eibach-sportline-coil-springs-front-&-rear-sway-bars 2010 Scion xDdon't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1981 1987 GMC Caballero to meet the demands required by today's high performance drag race and handling pro touring cars, QA1's multi patent pending MOD Series shock will transform the way racers respond to changing track conditions and configurations. The key element to this tunability is QuickTune Technology: dry modular valve