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6-4-8431-1
This Dana Spicer 6-4-8431-1 is a splined-bore end yoke designed for heavy-duty truck driveshafts. It connects a 1710 series universal joint to a splined transmission or axle output shaft, securing the joint with straps and bolts. Truck owners typically replace this part when splines wear or the yoke ears become stretched or damaged, which can cause driveline vibration. It is a common repair item during U-joint replacement to ensure a tight, balanced connection.
Fitment is determined by spline dimensions and U-joint series, not by vehicle make/model. Verify that your shaft has a 2.024-inch major diameter with 39 involute splines and that you are using a 1710 series U-joint before ordering.
Part Number: 6-4-8431-1
END YOKE
Vendor: DANA
Dealer: KP Services Crossville
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