1975 GMC Pick-up Truck Differential Carrier C35 - 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 1975 GMC Pick-up Truck Differential Carrier C35 - RWD - Yukon Dura Grip Positraction - GM 10.5 in. / 14T Rear - 14 Bolt Cover - 30 Spline - 4.10 And Down or Thick Gears - Rear. 1975 GMC Pick-up Truck Differential Carrier comes new OEM 1975 GMC Pick-up Truck Differential Carrier aftermarket new 1975 GMC Pick-up Truck Differential Carrier of remanufactured 1975 GMC Pick-up Truck Differential Carrier C35 - RWD - Yukon Dura Grip Positraction - GM 10.5 in. / 14T Rear - 14 Bolt Cover - 30 Spline - 4.10 And Down or Thick Gears - Rear.