Skyjacker 4" 99-UP SUPERDUTY GAS ENG

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SKU: SKYF940
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Softride® springs use only American steel and the individual leafs ...Read More

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Sale price$792.99 Regular price$898.98
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit
Softride® springs use only American steel and the individual leafs of each spring are shot-peened with hard steel pellets at very high velocities. This shot-peening compresses the surface of the steel thereby increasing the tensile strength of the spring. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the spring. Softride® springs use bolt style spring clips, eliminating friction. Other spring designs use the cinch style bend clips which bend tightly over the spring leafs causing binding and friction. Skyjacker® Softride® springs taper over the entire length of the leaf creating more flex at the leaf ends. This tapering distributes loads more evenly over a greater area and reduces the tendency for one leaf to dig into the leaf above it.

This Part Fits:

Year Make Model Submodel
2003-2005 Ford Excursion Eddie Bauer
2000-2005 Ford Excursion Limited
2004-2005 Ford Excursion XLS
2000-2005 Ford Excursion XLT
2004 Ford F-250 Super Duty Harley-Davidson Edition
2004 Ford F-250 Super Duty King Ranch
1999-2004 Ford F-250 Super Duty Lariat
1999-2004 Ford F-250 Super Duty XL
1999-2004 Ford F-250 Super Duty XLT
2004 Ford F-350 Super Duty Harley-Davidson Edition
2003-2004 Ford F-350 Super Duty King Ranch
1999-2004 Ford F-350 Super Duty Lariat
1999-2004 Ford F-350 Super Duty XL
1999-2004 Ford F-350 Super Duty XLT

Product Details

Product Description
Part Numbers
Sizing & Fit
Softride® springs use only American steel and the individual leafs of each spring are shot-peened with hard steel pellets at very high velocities. This shot-peening compresses the surface of the steel thereby increasing the tensile strength of the spring. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the spring. Softride® springs use bolt style spring clips, eliminating friction. Other spring designs use the cinch style bend clips which bend tightly over the spring leafs causing binding and friction. Skyjacker® Softride® springs taper over the entire length of the leaf creating more flex at the leaf ends. This tapering distributes loads more evenly over a greater area and reduces the tendency for one leaf to dig into the leaf above it.

This Part Fits:

Year Make Model Submodel
2003-2005 Ford Excursion Eddie Bauer
2000-2005 Ford Excursion Limited
2004-2005 Ford Excursion XLS
2000-2005 Ford Excursion XLT
2004 Ford F-250 Super Duty Harley-Davidson Edition
2004 Ford F-250 Super Duty King Ranch
1999-2004 Ford F-250 Super Duty Lariat
1999-2004 Ford F-250 Super Duty XL
1999-2004 Ford F-250 Super Duty XLT
2004 Ford F-350 Super Duty Harley-Davidson Edition
2003-2004 Ford F-350 Super Duty King Ranch
1999-2004 Ford F-350 Super Duty Lariat
1999-2004 Ford F-350 Super Duty XL
1999-2004 Ford F-350 Super Duty XLT

Product Details

Product Description
Softride® springs use only American steel and the individual leafs of each spring are shot-peened with hard steel pellets at very high velocities. This shot-peening compresses the surface of the steel thereby increasing the tensile strength of the spring. Without this shot-peening procedure, the maximum wheel travel and ride quality could not be achieved without sacrificing the life of the spring. Softride® springs use bolt style spring clips, eliminating friction. Other spring designs use the cinch style bend clips which bend tightly over the spring leafs causing binding and friction. Skyjacker® Softride® springs taper over the entire length of the leaf creating more flex at the leaf ends. This tapering distributes loads more evenly over a greater area and reduces the tendency for one leaf to dig into the leaf above it.

This Part Fits:

Year Make Model Submodel
2003-2005 Ford Excursion Eddie Bauer
2000-2005 Ford Excursion Limited
2004-2005 Ford Excursion XLS
2000-2005 Ford Excursion XLT
2004 Ford F-250 Super Duty Harley-Davidson Edition
2004 Ford F-250 Super Duty King Ranch
1999-2004 Ford F-250 Super Duty Lariat
1999-2004 Ford F-250 Super Duty XL
1999-2004 Ford F-250 Super Duty XLT
2004 Ford F-350 Super Duty Harley-Davidson Edition
2003-2004 Ford F-350 Super Duty King Ranch
1999-2004 Ford F-350 Super Duty Lariat
1999-2004 Ford F-350 Super Duty XL
1999-2004 Ford F-350 Super Duty XLT

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