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Join Date: May 2008
Location: Le Roy, NY
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typically the factory rear blocks are 2" and is not recommended to reuse U-bolts when altering. You can usually find local trucking companies that do their own repairs to make a set of U-bolts for you relatively cheap. I also recommend deleting the 2" stock blocks altogether, and just buying a 3" or 4" block. Be weary of your driveshaft angle though because this can cause excess wear on U-Joints at the rear diff. Just my recommendations since you said you do haul with it, if it were my truck, I wouldn't want any of my blocks to shift.
2004 F250 XLT 6" lift, 37" tires, zoodad, T6,
edge cs, k&n, revx, warn lockers, rhino bars
future: coolant filter, headstuds, bluespring, 4" turboback, tires..dam these tires