1985 Ford E Series Van Differential Carrier E-250 Econoline - RWD - Yukon Dura Grip Positraction - Ford 8.8 in. Rear - 31 Spline - Limited Slip - Rear guaranteed to replace your current 1985 Ford E Series Van Differential Carrier E-250 Econoline - RWD - Yukon Dura Grip Positraction - Ford 8.8 in. Rear - 31 Spline - Limited Slip - Rear. 1985 Ford E Series Van Differential Carrier comes new OEM 1985 Ford E Series Van Differential Carrier aftermarket new 1985 Ford E Series Van Differential Carrier of remanufactured 1985 Ford E Series Van Differential Carrier E-250 Econoline - RWD - Yukon Dura Grip Positraction - Ford 8.8 in. Rear - 31 Spline - Limited Slip - Rear.