2-3-5281X – Transmission Yokes – 1310 Series – 31/31 X 1.397 Splines – 1.685″ Hub Dia

2-3-5281X UDS 1310 Slip Yoke

The 2-3-5281X is a 1310 series slip yoke manufactured by UDS. The slip yoke slides over the stop shaft — the splined stub welded onto the front section of the driveshaft tube — and telescopes in and out as the suspension cycles. This allows the driveshaft to change working length without binding.

The spline bore is 31/31-inch diameter with 1.397 splines. The stop shaft on the driveshaft tube must have an identical 31/31-inch diameter and 1.397-spline profile — a mismatch in either count or diameter means the yoke will not engage. The centerline-to-end dimension is 5.188 inches, measured from the U-joint centerline to the open end of the spline bore. This controls minimum engagement depth under full suspension droop — ensure sufficient spline overlap remains at maximum driveshaft extension. TH400 with smaller seal. The 1310 series ranks above 1210 in torque capacity, with a 1.062-inch cap diameter, suited for light-duty trucks, half-ton pickups, and most rear-wheel-drive passenger cars.

Specifications

• Part Number: 2-3-5281X
• Brand: UDS
• Series: 1310
• Center u joint to end: 5.188
• Counter bore dia: 880
• Hub dia: 1.685
• Notes: TH400 with smaller seal
• Splines count dia: 31/31 X 1.397

Fitment & Installation Notes

When selecting the 2-3-5281X, verify the stop shaft spline count and diameter match the 31/31 X 1.397 specification. Inspect the stop shaft for wear or damage; a worn shaft will produce lash even with a new yoke.

View the full range of Transmission Yokes in 1310 and adjacent series configurations.