3104-09 – End Yoke – 1.328″ Splines Dia – 1.739″ Hub Dia – 30 Spline

The 1310 Series driveshaft standard has been the backbone of medium-duty automotive and light truck driveline engineering for decades. The 3104-09 end yoke from UDS is manufactured to the same dimensional standards that define this series, ensuring backward and forward compatibility across the wide range of vehicles and equipment that run 1310 Series drivetrain components.

The 1310 Series Standard Explained

Each driveshaft series -- 1100, 1310, 1350, and so on -- is defined by a specific set of U-joint cap dimensions, yoke ear geometry, and torque ratings. The 1310 Series designation tells you the cap diameter, width, and load envelope this yoke is designed for. Mixing series without proper adapter joints creates mismatched geometries that fail under load. The 3104-09 keeps everything within the 1310 Series specification.

• Spline diameter: 1.328" -- the 1310 Series output shaft standard
• Spline count: 30
• Snap ring style: BS -- standard for 1310 Series service
• Hub diameter: 1.739" -- mates with 1310 Series-rated differential or transfer case outputs

Part Specifications

Dimensional adherence to the 1310 Series standard means this yoke will mate with any properly dimensioned 1310 Series U-joint and driveshaft. Application: GM 8.875. The following table lists every critical dimension.

Ordering and Fitment Verification

Ordering the correct end yoke requires matching three numbers: the spline diameter (1.328"), the spline count (30), and the snap ring style (BS). If your shaft differs from these values, this part will not fit -- consult our fitment guide or contact our technical team before ordering.

The through hole diameter of 1.170" is relevant for applications with internal shafts or speedometer cable routing through the output yoke. The center-U-joint-to-end dimension of 2.850" must be matched to your driveshaft slip yoke or tube assembly for correct operating length.

Part 3104-09 is a UDS product. Universal Driveshafts stocks a complete range of 1310 Series end yokes, U-joints, and driveshaft components. Contact our technical team for fitment assistance.