AEV High Capacity 3in Coil Spring Kit

AEV 3″ High-Capacity Coil Springs are a direct fit upgrade for Gladiator customers with an AEV 2.5″ DualSport Suspension System already installed on their vehicle. Developed with the true overland enthusiast in mind, these frequency-tuned, progressive rate coil springs provide the increased load carrying capacity necessary for heavily loaded vehicles, while still offering the exceptional ride quality, handling, and off-road articulation that AEV is known for.

While these coil springs will work for a lighter weight vehicle, customers should be aware that it will sit higher than advertised and have a slightly stiffer ride – not excessively harsh or intolerable, but also not nearly as pleasant for daily use as a vehicle within our target weight range.

AEV High-Capacity coil springs are engine specific and only sold as a complete set of front/rear springs in order to preserve the optimal vehicle handling dynamics that our DualSport suspensions provide.

Note: Exceeding GVWR (Gross Vehicle Weight Rating) and/or RGAWR (Rear Gross Axle Weight Rating) will cause changes in the vehicle’s braking, steering and overall handling performance. AEV never recommends exceeding GVWR/RGAWR.

A: It is highly recommended to pair these springs with longer-travel shocks that are tuned for a 3-inch lift to maintain ride quality and proper suspension function. AEV 3” DualSport shocks or other compatible options are ideal.

A: “High Capacity” refers to the springs being designed to support heavier loads—ideal for vehicles equipped with armor, winches, overland gear, or towing equipment.

A: While firmer than standard coils, the ride remains compliant thanks to AEV’s progressive spring rates. It's optimized for both loaded and unloaded conditions, though it will feel stiffer than OE springs when the vehicle is empty.