QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 500 lbs/in Rate - 1970-1981 Pontiac Firebird spl-parts-adjustable-rear-traction-arm-set 1977 Ford F-350 Base (F-Series)

1977 Ford F-350 Base (F-Series)

1995 Mitsubishi Lancer Evolution II (CE9A)

2008 BMW 5 Series Sedan AWD (E60)

5 Kg/mm Spring Rates - Rear 6

QA1 MOD Series Front Coilover Kit - Double Adjustable, Large Tapered Flat Spring, 500 lbs/in Rate - 1970-1981 Pontiac Firebird spl-parts-adjustable-rear-traction-arm-set 1977 Ford F-350 Base (F-Series)don't be limited to adjustments! Completely re valve in minutes with the MOD Series Shock. Designed specifically on your 1970 1981 Pontiac Firebird 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