2013 LS 4x2 Crew Cab LS 4x2 Extended Cab 6.5' Box LS 4x4 Crew Cab LS 4x4 Extended Cab 6.5' Box LT 4x2 Crew Cab LT 4x2 Extended Cab 6.5' Box LT 4x2 Extended Cab 8' Box LT 4x2 Standard Cab 6.5' Box LT 4x2 Standard Cab 8' Box LT 4x4 Crew Cab LT 4x4 Extended Cab 6.5' Box LT 4x4 Extended Cab 8' Box LT 4x4 Standard Cab 6.5' Box LT 4x4 Standard Cab 8' Box LTZ 4x2 Crew Cab LTZ 4x2 Extended Cab 6.5' Box LTZ 4x2 Extended Cab 8' Box LTZ 4x4 Crew Cab LTZ 4x4 Extended Cab 6.5' Box LTZ 4x4 Extended Cab 8' Box Work Truck 4x2 Crew Cab Work Truck 4x2 Extended Cab 6.5' Box Work Truck 4x2 Extended Cab 8' Box Work Truck 4x2 Standard Cab 6.5' Box Work Truck 4x2 Standard Cab 8' Box Work Truck 4x4 Crew Cab Work Truck 4x4 Extended Cab 6.5' Box Work Truck 4x4 Extended Cab 8' Box Work Truck 4x4 Standard Cab 6.5' Box Work Truck 4x4 Standard Cab 8' Box Xtra Fuel Economy 4x2 Crew Cab