tokens: Features that differ from those previously mentioned on the Tahoe Limited included the Z71 off-road chassis package ( Bilstein shock absorbers , a standard 3.73 rear gear ratio G80 locking differential ) , color-keyed wheel flares , trim , grille and bumpers , underbody skid plates , inset driving lights built into the center of the front bumper , oversized two row radiator , two-tone leather seating surfaces in either a gray or neutral theme , distinctive taillamp lens protectors , black tubular side assist step bars , black brush guard , and distinctive 16 inch Alcoa five spoke 6 bolt polished aluminum wheels .