Select a Trim I Don't Know 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SL (245/75R16 120 S) 4 Dr Crew Cab Pickup, 6 Ft Bed Sierra SLT 2 Dr Standard Cab Pickup, 6 Ft Bed Sierra SL (245/75R16 120 S) 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SLE (245/75R16 120 Q) 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SLT (245/75R16 120 Q) 2 Dr Standard Cab Pickup, 6 Ft Bed Sierra SLE (225/75R16 110 S) 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SL (245/75R16 120 Q) 2 Dr Standard Cab Pickup, 6 Ft Bed Sierra SL (245/75R16 120 Q) 2 Dr Cab & Chassis, 6 Ft Bed Sierra SLT 2 Dr Cab & Chassis, 6 Ft Bed Sierra SL (245/75R16 120 S) 4 Dr Crew Cab Pickup, 6 Ft Bed Sierra SL 4 Dr Crew Cab Pickup, 6 Ft Bed Sierra SLE 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SLE (245/75R16 120 S) 2 Dr Cab & Chassis, 6 Ft Bed Sierra SLE 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SLE (225/75R16 110 S) 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SLT (225/75R16 110 S) 2 Dr Extended Cab Pickup, 6 Ft Bed Sierra SL (225/75R16 110 S) 2 Dr Standard Cab Pickup, 6 Ft Bed Sierra SL (225/75R16 110 S) 2 Dr Cab & Chassis, 6 Ft Bed Sierra SL (245/75R16 120 Q) 2 Dr Standard Cab Pickup, 6 Ft Bed Sierra SLE (245/75R16 120 Q) 2 Dr Standard Cab Pickup, 6 Ft Bed Sierra SLE (245/75R16 120 S) 2 Dr Standard Cab Pickup, 8 Ft Bed Sierra SL (245/75R16 120 S) 2 Dr Standard Cab Pickup, 8 Ft Bed Sierra SLE (245/75R16 120 Q) 2 Dr Standard Cab Pickup, 8 Ft Bed Sierra SLE (245/75R16 120 S) 4 Dr Crew Cab Pickup, 8 Ft Bed Sierra SLE 2 Dr Standard Cab Pickup, 8 Ft Bed Sierra SL (245/75R16 120 Q) 4 Dr Crew Cab Pickup, 8 Ft Bed Sierra SL 2 Dr Standard Cab Pickup, 8 Ft Bed Sierra SL (225/75R16 110 S) 2 Dr Cab & Chassis, 8 Ft Bed Sierra SLT (245/75R16 120 Q) 4 Dr Crew Cab Pickup, 8 Ft Bed Sierra SLT (245/75R16 120 Q) 2 Dr Cab & Chassis, 8 Ft Bed Sierra SL 2 Dr Cab & Chassis, 8 Ft Bed Sierra SLE 2 Dr Standard Cab Pickup, 8 Ft Bed Sierra SLE (225/75R16 110 S) 2 Dr Standard Cab Pickup Sierra SLE (225/75R16 110 S) 4 Dr Crew Cab Pickup Sierra SL 2 Dr Standard Cab Pickup Sierra SLE (245/75R16 120 S) 2 Dr Extended Cab Pickup Sierra SLT (245/75R16 120 Q) 4 Dr Crew Cab Pickup Sierra SLT 2 Dr Standard Cab Pickup Sierra SL (245/75R16 120 S) 2 Dr Extended Cab Pickup Sierra SL (245/75R16 120 Q) 2 Dr Standard Cab Pickup Sierra SLE (245/75R16 120 Q) 2 Dr Extended Cab Pickup Sierra SLE (245/75R16 120 Q) 2 Dr Standard Cab Pickup Sierra SL (245/75R16 120 Q) 2 Dr Extended Cab Pickup Sierra SL (245/75R16 120 S) 2 Dr Extended Cab Pickup Sierra SL (225/75R16 110 S) 2 Dr Extended Cab Pickup Sierra SLT (225/75R16 110 S) 4 Dr Crew Cab Pickup Sierra SLE 2 Dr Extended Cab Pickup Sierra SLE (245/75R16 120 S) 2 Dr Extended Cab Pickup Sierra SLE (225/75R16 110 S) 2 Dr Standard Cab Pickup Sierra SL (225/75R16 110 S)