1969 GMC Pick-up Truck Differential Carrier C25/C2500 Pickup - Yukon Dura Grip positraction - Dana 60 Rear - 35 spline - Full Float Axle, 4.10 and Down Ratio or Thick Gears - Rear guaranteed to replace your current 1969 GMC Pick-up Truck Differential Carrier C25/C2500 Pickup - Yukon Dura Grip positraction - Dana 60 Rear - 35 spline - Full Float Axle, 4.10 and Down Ratio or Thick Gears - Rear. 1969 GMC Pick-up Truck Differential Carrier comes new OEM 1969 GMC Pick-up Truck Differential Carrier aftermarket new 1969 GMC Pick-up Truck Differential Carrier of remanufactured 1969 GMC Pick-up Truck Differential Carrier C25/C2500 Pickup - Yukon Dura Grip positraction - Dana 60 Rear - 35 spline - Full Float Axle, 4.10 and Down Ratio or Thick Gears - Rear.