2003 Chevrolet Express 3500 Differential Carrier Express 3500 - RWD - Yukon Dura Grip Positraction - GM 10.5 in. / 14T Rear - 14 Bolt Cover - 30 Spline - 4.10 And Down or Thick Gears - Rear guaranteed to replace your current 2003 Chevrolet Express 3500 Differential Carrier Express 3500 - RWD - Yukon Dura Grip Positraction - GM 10.5 in. / 14T Rear - 14 Bolt Cover - 30 Spline - 4.10 And Down or Thick Gears - Rear. 2003 Chevrolet Express 3500 Differential Carrier comes new OEM 2003 Chevrolet Express 3500 Differential Carrier aftermarket new 2003 Chevrolet Express 3500 Differential Carrier of remanufactured 2003 Chevrolet Express 3500 Differential Carrier Express 3500 - RWD - Yukon Dura Grip Positraction - GM 10.5 in. / 14T Rear - 14 Bolt Cover - 30 Spline - 4.10 And Down or Thick Gears - Rear.