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Backspacing is the measurment from the mounting flange of the wheel to the innermost part of the wheel. A wheel with 4in. of backspacing would stick out from the truck more than a wheel with 6in. of backspacing. On an Excursion or 04 or later Ford you need less than 5in. or when turned full lock the tires will rub the leaf springs. 05 and newer coil spring trucks can run up to 6in. of backspacing.
You wont hardly find any aftermarket wheels that will be hubcentric. It is a better and stronger way of mounting but I and thousands of others have 0 problems with lugcentric wheels.
Hubcentric (factory wheels are hubcentric) center themselves on the axle or rotor hub and fit snug on the hub. The lugs only hold the wheel to the truck, the lugs usually have a washer built into them and only clamp. Lugcentric wheels use the tapered lugs to center up and clamp the wheel to the truck. They are considered wealker because the wheel studs carry the weight. I cant imagine 8 14mm studs all breaking, it would take a tremendous amount of load.
Last edited by Chillinthemost : 01-05-2009 at 06:58 PM.
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