Chevy Silverado 1500 07-10 ('10 1ST Design) / '12-13 SL. SLE Model / '09-10 Hybrid ('10 1ST Design) / '11-13 2500 / 3500 P / U Single Rear Wheels / '07-10 2500 / 3500 HD Series / GMercury Sierra 1500 '12-13 SL. SLE Model / '07-10 2500 / 3500 ('10 1ST Design) Dual Rear Wheels Tail Light Assembly LH USA Driver Side NSF OEM comparable design to ensure the structural fitment and strength. Exact replacement for factory OEM unit, no modification needed. Assembly meets or exceeds DOT & SAE standards Picture could be Left or Right for demonstration purpose only. LH=USA Driver Side / RH=USA Passenger Side / LH=RH Unit for Either Side / P=Include Both Side(LH&RH) / FLH=Front Driver Side / FRH=Front Passenger Side / RLH=Rear Driver Side / RRH=Rear Passenger Side