Hellwig's medium-duty EZ-990 Helper Springs pack a lot of capability in every box. Packaged complete with the same heavy duty powder coated and plated components, hardware and installation instructions as our heavy duty helper spring products, these kits are designed for the vehicles that need lighter assistance in carrying a load. Simple bolt on design using common hand tools provide the installer ease of installation and the vehicle owner hassle free use. Ideally suited for light towing and loads, these units are fully adjustable using the heavy duty U-bolts included in the kit using simple hand tools. If your tow and haul needs change, simply adjust the heavy duty U-bolts to suit the new load requirements. Once installed and adjusted you are free to haul or tow with greater control and stability. Manufactured with heat treated ASTM 5160 alloy spring steel in our California based facility, these units are rated up to 2,000 lb. level load carrying capacity. They are a great cost effective spring solution and can be adjusted independently for uneven side to side loads.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1999-2005	Chevrolet	Silverado 1500	Base
2004-2006	Chevrolet	Silverado 1500	Hybrid
1999-2007	Chevrolet	Silverado 1500	LS
1999-2007	Chevrolet	Silverado 1500	LT
2007	Chevrolet	Silverado 1500	LTZ
2003-2006	Chevrolet	Silverado 1500	SS
2002-2007	Chevrolet	Silverado 1500	WT
2004	Chevrolet	Silverado 1500	Z71
2005	Chevrolet	Silverado 1500	Z71 Off-Road
2007	Chevrolet	Silverado 1500 Classic	Hybrid
2007	Chevrolet	Silverado 1500 Classic	LS
2007	Chevrolet	Silverado 1500 Classic	LT
2007	Chevrolet	Silverado 1500 Classic	SS
2007	Chevrolet	Silverado 1500 Classic	WT
1999	GMC	K1500	Sierra SL
1999	GMC	K1500	Sierra SLE
1999	GMC	K1500	Sierra SLT
2002-2005	GMC	Sierra 1500	Base
2001	GMC	Sierra 1500	C3
2002-2007	GMC	Sierra 1500	Denali
2002	GMC	Sierra 1500	HT
2005-2006	GMC	Sierra 1500	Hybrid
1999-2003,2006-2007	GMC	Sierra 1500	SL
1999-2007	GMC	Sierra 1500	SLE
1999-2007	GMC	Sierra 1500	SLT
2002-2007	GMC	Sierra 1500	WT
2007	GMC	Sierra 1500 Classic	Hybrid
2007	GMC	Sierra 1500 Classic	SL
2007	GMC	Sierra 1500 Classic	SLE
2007	GMC	Sierra 1500 Classic	SLT
2007	GMC	Sierra 1500 Classic	WT