AEV Conversions | 2007-2018 Jeep Wrangler JK Unlimited 4.5 Inch High Capacity Coil Springs

AEV 4.5″ High Capacity Coil Springs are a direct fit upgrade for customers with an AEV 4.5″ DualSport SC Suspension System. Designed with the overlander in mind, these frequency-tuned, progressive rate coil springs provide the increased load carrying capacity necessary for heavily loaded vehicles, while still offering exceptional ride quality, handling and off-road articulation. These Jeep JK coil springs are only available as a matching set of front and rear springs in order to preserve optimal vehicle handling dynamics. The relative rate/frequency of the front coil springs vs. the rear springs is a crucial part of safe vehicle handling.  Because of this, AEV increases the rate/frequency of the front springs in order to maintain an appropriate relationship with the rear springs, across the entire range of rear-biased loading. PLEASE NOTE: These coil springs are designed specifically for heavily loaded vehicles, exceeding GVWR (Gross Vehicle Weight Rating) and RGAWR (Rear Gross Axle W