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What are Locking Differentials and What New 4x4s Have Them?
Locking differentials ... trims of the Ford Bronco, Chevrolet Colorado ZR2, and Silverado Trail Boss. Lockable center ...
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2009 Chevrolet Avalanche - Specs & Trims
(Includes off-road jounce bumpers, specially tuned springs and gas charged mono tube shocks, (G80) heavy-duty locking rear differential, (B71) front and rear wheel flares, (N87) 4 - 18" x 8 ...