1971 GMC Suburban Differential Carrier C15/C1500 Suburban - Dana 60 - Yukon Grizzly Locker - 35 Spline - 4.10 and Down or Thick Gear Ratio's - w/ Full Float Axle - Rear guaranteed to replace your current 1971 GMC Suburban Differential Carrier C15/C1500 Suburban - Dana 60 - Yukon Grizzly Locker - 35 Spline - 4.10 and Down or Thick Gear Ratio's - w/ Full Float Axle - Rear. 1971 GMC Suburban Differential Carrier comes new OEM 1971 GMC Suburban Differential Carrier aftermarket new 1971 GMC Suburban Differential Carrier of remanufactured 1971 GMC Suburban Differential Carrier C15/C1500 Suburban - Dana 60 - Yukon Grizzly Locker - 35 Spline - 4.10 and Down or Thick Gear Ratio's - w/ Full Float Axle - Rear.