1986 Dodge Pick-up Truck Differential Spool W350 - 4WD - Dana 60 - Standard Rotation - For Use w/30 Spline Axles - Steel - 4.10 Ratio And Down - Front guaranteed to replace your current 1986 Dodge Pick-up Truck Differential Spool W350 - 4WD - Dana 60 - Standard Rotation - For Use w/30 Spline Axles - Steel - 4.10 Ratio And Down - Front. 1986 Dodge Pick-up Truck Differential Spool comes new OEM 1986 Dodge Pick-up Truck Differential Spool aftermarket new 1986 Dodge Pick-up Truck Differential Spool of remanufactured 1986 Dodge Pick-up Truck Differential Spool W350 - 4WD - Dana 60 - Standard Rotation - For Use w/30 Spline Axles - Steel - 4.10 Ratio And Down - Front.