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Rancho 2003-2008 Dodge Ram 2500 & 3500 4" Lift # RS6579B

This Rancho RS6579B (Black) 4" suspension lift is designed to fit the 2003, 2004, 2005, 2006, 2007 and 2008 Dodge Ram 2500 4x4 and Dodge Ram 3500 4x4 trucks. This no compromise 4-inch suspension lift package allows customers to upgrade to 37-inch diameter tires. New heavy duty tubular-style upper and lower links bolt directly to the OE mounting location without cutting or drilling. While adding superior strength and stability to the suspension, the new links restore the caster angle to an optimal setting.
SKU: RS6579B
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Availability: In stock


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Kit Features:
New HD forged pitman arm
Preserves OE geometry for easy alignment
Zero bump steer
Optimal ride and handling
New computer designed coil springs
No exhaust modification necessary
Allows up to a 37" tall tire
Allows for reuse of the OE front skidplate
One-piece cast rear lift blocks with bump stop
Allows for reuse of the stock wheels
No welding required!

Kit Contents:
RS6579B - Primary Kit

Necessary Additions:
RS80121B - Diesel Coil Spring
RS80120B - Gasoline Coil Spring
RS747 - Diesel U-Bolt Kit
RS748 Gasoline U-Bolt Kit

The RS6579B kits were developed using 37x12.50R17 tires on a 17x8 wheel with 6" of back space. Please note, to prevent tire clearance issues wheel must have between 5.5 and 6 inches of back space. Under some extreme off-road situations, some trimming of the front air dam/fascia area may be necessary for extra clearance. Shock absorbers are NOT included with this kit and are sold separately. Front and rear shocks can be purchased using the selection box located above this item description. Please note, Rancho offers two different front coil springs, one designed for 5.9L or 6.7L Cummins Diesel equipped trucks and another for 5.7L Hemi Gasoline engines. Coil springs are NOT included in the RS6579B kit. Also note that the correct U-bolt for your Ram will be based on the Engine type. The Cummins Diesel equipped trucks require Rancho U-Bolt Kit # RS747. The 5.7L Hemi Gasoline Engine equipped trucks require Rancho U-Bolt Kit # RS748. Dodge Ram trucks equipped with a 2-piece rear drive shaft will also need the Rancho carrier bearing drop kit, Rancho # RS6608 - purchased separately. Please be sure to select the correct spring for your application when placing your order. If you have any questions about this or any other Rancho Suspension product please click on the "ask a question" link located at the very top of this page.

This item ships for FREE via standard ground service to all addresses in the contiguous 48 United States of America!

Additional Info

Additional Info

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Manufacturer Rancho Suspension
Part Number RS6579B
Vehicle Make Dodge
Vehicle Model Ram 2500, Ram 3500 SRW
Vehicle Year 2008, 2007, 2006, 2005, 2004, 2003
Drive Type 4-Wheel Drive
Made In the USA Yes
Installation Guide N/A
Current Rebates N/A


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