Add assistance to your factory overload springs with Hellwig's Contact Helper Springs. Get help sooner with the contact helper, as the vehicle is loaded the Hellwig contact helper spring connects with the factory contact pads sooner providing better support and less sag for heavy loads. When in contact, the extra Hellwig leaves stiffen the overload springs decreasing the sag of the vehicle in a loaded condition. Hellwig contact overload assist springs mount directly to the factory contact springs for easy install and better load support to increase the truck's level-load carrying capacity. In normal use, they leave performance unchanged.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2020-2023	Chevrolet	Silverado 3500 HD	High Country
2020-2023	Chevrolet	Silverado 3500 HD	LT
2020-2023	Chevrolet	Silverado 3500 HD	LTZ
2020-2023	Chevrolet	Silverado 3500 HD	WT
1997-1999	Ford	F-250	Base
1988-1992	Ford	F-250	Custom
1995-1996	Ford	F-250	Eddie Bauer
1997-1999	Ford	F-250	Lariat
1995-1996	Ford	F-250	Special
1988-1999	Ford	F-250	XL
1993-1999	Ford	F-250	XLT
1988-1992	Ford	F-250	XLT Lariat
2009-2010	Ford	F-250 Super Duty	Cabela's
2008-2009	Ford	F-250 Super Duty	FX4
2004-2010	Ford	F-250 Super Duty	Harley-Davidson Edition
2004-2016	Ford	F-250 Super Duty	King Ranch
1999-2016	Ford	F-250 Super Duty	Lariat
2013-2016	Ford	F-250 Super Duty	Platinum
1999-2016	Ford	F-250 Super Duty	XL
1999-2016	Ford	F-250 Super Duty	XLT
1997	Ford	F-350	Base
1988-1992	Ford	F-350	Custom
1995	Ford	F-350	Eddie Bauer
1995-1996	Ford	F-350	Special
1988-1997	Ford	F-350	XL
1993-1997	Ford	F-350	XLT
1988-1992	Ford	F-350	XLT Lariat
2009-2010	Ford	F-350 Super Duty	Cabela's
2008-2009	Ford	F-350 Super Duty	FX4
2004-2010	Ford	F-350 Super Duty	Harley-Davidson Edition
2003-2016	Ford	F-350 Super Duty	King Ranch
1999-2016	Ford	F-350 Super Duty	Lariat
2013-2016	Ford	F-350 Super Duty	Platinum
1999-2016	Ford	F-350 Super Duty	XL
1999-2016	Ford	F-350 Super Duty	XLT
2020-2023	GMC	Sierra 3500 HD	AT4
2020-2021	GMC	Sierra 3500 HD	Base
2020-2023	GMC	Sierra 3500 HD	Denali
2022-2023	GMC	Sierra 3500 HD	Pro
2020-2023	GMC	Sierra 3500 HD	SLE
2020-2023	GMC	Sierra 3500 HD	SLT