6.3-4-161 – End Yoke – 1760 Series – 2.350″ Splines Dia – 2.875″ Hub Dia

That clunk under acceleration that goes away when you grab the driveshaft and check for play — it's usually here, at the end yoke splines. The 6.3-4-161 end yoke is the correct 1760 series replacement. Count the splines on your output shaft before ordering. Don't guess by series alone.

6.3-4-161 End Yoke — Spline Specs & 1760 Series Fitment

The 1760 series covers Dana 80 rear axle trucks — heaviest factory Dana rear axle produced. The 6.3-4-161 end yoke specs: 2.350" x 16 spline | 2.875" hub dia | 5.500"" CJ-to-end | 2.750" bore. Strap/bearing-plate retention provides more clamping force than snap rings — preferred for high-torque and heavy-duty use. Hub diameter is the outer dimension that clears the axle housing or T-case bore. CJ-to-end determines how the u-joint positions relative to the flange or seal surface. Count the splines on your output shaft — don't go by the vehicle model alone. Axle swaps and rebuilds can change the spline count from the original. The 6.3-4-161 end yoke is dimensioned for one spline specification; putting it on the wrong shaft will damage both the yoke and the shaft.

Key Features

• Series: 1760 — Dana 80 rear axle trucks — heaviest factory Dana rear axle produced
• Spline: 2.350" x 16 — must match output shaft exactly
• Hub dia: 2.875" — outer dimension, verify clearance
• CJ-to-end: 5.500"" — positions u-joint relative to axle flange
• Bore: 2.750"
• Retention: BP — Strap/bearing-plate retention provides more clamping force than snap rings — preferred for high-torque and heavy-duty use.
• Brand: UDS

Specifications

• SKU: 6.3-4-161
• Brand: UDS
• Series: 1760
• Spline Dia: 2.350"
• Spline Count: 16
• Hub Dia: 2.875"
• CJ to End: 5.500""
• Through Hole: 2.750"
• Style: BP