Re: increasing load capacity
nothing you can do will safely increase load capacity. ford rates the trucks at a specific capacity based on many other factors, like vehicle weight, frame strength, axle strength, braking, wheelbase, tire size, ect, not just spring rate. adding helper springs will prevent the truck from sagging as much with a load in it but will not increase the amount of weight that the truck can safely haul.
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2001 Ranger 4x4 Stepside
-RCD Suspension lift
-33x12.5 BFG KM2's on Mickey Thomson classic locks
-4:56 gears
-Auburn gear LS
-James Duff traction bars
-Headers
-Flowmaster duals
-SCT X-Cal2 and some small exterior mods
http://www.cardomain.com/ride/2321189
2005 F-150 Lariat 4x4
- LED third brake light
-Weathertech floor liners
-Edge tuner
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