Helper Spring 2.43in Dia 2.95in Tall

The Helper Spring 2.43in Dia 2.95in Tall by EIBACH is a precision suspension component designed to support factory springs and eliminate unwanted suspension sag under load. Whether you're running a lifted truck, hauling payload regularly, or driving a vehicle that settles excessively under weight, helper springs provide additional load-carrying capacity without replacing your entire spring system. These auxiliary springs activate only when your primary springs compress past a certain threshold, maintaining ride quality on empty runs while firming up the rear end when cargo, passengers, or towing demands it.

EIBACH engineered this helper spring with a 2.43-inch diameter and 2.95-inch tall profile to fit specific suspension geometries where space and spring rate are critical. The compact dimensions allow clearance within factory suspension brackets while delivering consistent load support through progressive engagement. Helper springs work by sitting above or below primary coils—as suspension compresses under weight, the helper spring engages and shares the load, reducing deflection and maintaining proper ride height. This design prevents bottoming, reduces brake dive, and stabilizes handling during cornering when the vehicle is loaded.

This EIBACH helper spring is ideal for truck owners, fleet operators, and enthusiasts who regularly carry heavy loads or tow trailers without wanting a permanent spring rate increase on empty drives. It's commonly paired with factory springs on full-size pickups, SUVs, and commercial vehicles where load rating flexibility matters. Proper installation requires removing the wheel and accessing the coil spring assembly—alignment and seating with the factory spring pocket are essential for even load distribution and noise-free operation. Always verify fitment against your vehicle's year, make, model, and suspension configuration before purchase, as helper spring dimensions must match your specific spring pocket clearance and existing spring specifications.