AEV's High Capacity Coil Springs are a direct fit for those who already have an AEV 4.5" Dualsport SC or RS Suspension. Designed specifically designed for the overlanding crowd, these frequency-tuned progressive rate coil springs provide the increased load carrying capacity necessary for heavily loaded vehicles while still providing the best ride on and off road. These coil springs are only available as a matching set for the front and rear of your JKU. If you would like to pair these with the AEV 4.5" Suspension please give us a call.
While these coil springs are designed specifically for heavily loaded vehicles, exceeding GVWR (Gross Vehicle Weight Rating) and RGAWR (Rear Gross Axle Weight Rating) will cause changes in the vehicle’s braking, steering and overall handling performance. These springs are NOT designed as a means to additional lift height on unloaded vehicles. Installing these springs on an unloaded JK Wrangler will make the front end sit about 3/4″ higher than the standard 4.5″ spring and the rear end will sit about 1″ taller than the front. Due to the inherent nature of a heavy duty coil spring, vehicles with equipped with AEV High Capacity Coil Springs will experience a substantially stiffer ride quality if the vehicle is driven unloaded. However, ride quality will improve considerably as more weight is added to the vehicle. This is something that should be considered prior to purchasing these coil springs. Customers who currently have an AEV 3.5″ DualSport SC/RS Suspension System on their JK Wrangler can upgrade to these 4.5″ High Capacity Coil Springs by also purchasing an AEV 4.5″ Bump Stop Kit.