Externally, the GMC Sierra pickups of the Harley-Davidson series differ from ordinary trucks in increased clearance, new Fox shock absorbers, a modified exhaust system, an additional LED section in the front bumper, a hood with an air intake and a redrawed rear bumper. In addition, pickups are decorated with 35-inch wheels with off-road tires and two-tone 22-inch motorcycle-style aluminum wheels.
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