1973 GMC G35-G3500 Van Differential Carrier G35/G3500 Van - Yukon Dura Grip positraction - Dana 60 - 30 spline - Full Float Axle - 4.10 and Down Ratio or Thick Gears - Rear guaranteed to replace your current 1973 GMC G35-G3500 Van Differential Carrier G35/G3500 Van - Yukon Dura Grip positraction - Dana 60 - 30 spline - Full Float Axle - 4.10 and Down Ratio or Thick Gears - Rear. 1973 GMC G35-G3500 Van Differential Carrier comes new OEM 1973 GMC G35-G3500 Van Differential Carrier aftermarket new 1973 GMC G35-G3500 Van Differential Carrier of remanufactured 1973 GMC G35-G3500 Van Differential Carrier G35/G3500 Van - Yukon Dura Grip positraction - Dana 60 - 30 spline - Full Float Axle - 4.10 and Down Ratio or Thick Gears - Rear.