4-28-307-S Weld Tube Yoke 1550 – SPL70 Ser’ , Fits: 3.500 x 0.095 , SOLID BUTT – UDS

4-28-307-SU UDS 1550 Series Weld Tube Yoke — Solid Butt

The 4-28-307-SU is a 1550 series weld tube yoke manufactured by UDS with a solid butt construction, machined from steel. It fits a driveshaft tube OD of 3.500 inches with a wall thickness of 0.095 inches. The butt diameter measures 3.321 inches and the centerline of the U-joint to the weld end is 2.188 inches.

Specifications

• Part Number: 4-28-307-SU
• Brand: UDS
• Series: 1550
• Tube OD x Wall: 3.500" x 0.095"
• Butt Diameter: 3.321"
• Center U-Joint to Weld: 2.188"
• Material: Steel

When fitting the 4-28-307-SU, confirm the tube OD is 3.500 inches and the wall is 0.095 inches before welding. The solid butt design provides full material cross-section at the weld interface — a preferred configuration in high-torque applications where butt joint strength is critical. The 3.321-inch butt diameter is matched to the 3.500 x 0.095 tube spec. The 1550 series is positioned above the 1480 in the SAE heavy-duty lineup, offering greater torque capacity for demanding driveline applications. The 4-28-307-SU is also cross-referenced in the SPL70 series range — confirm the U-joint series designation on the mating components before completing the driveline assembly.