2903-30 Chrysler, Dodge, and Ram transmissions with 30-spline

2903-30 UDS 7290 Slip Yoke

The 2903-30 is a 7290 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 29/30-inch diameter with 1.312 splines. The stop shaft on the driveshaft tube must have an identical 29/30-inch diameter and 1.312-spline profile — a mismatch in either count or diameter means the yoke will not engage. The centerline-to-end dimension is 8.031 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. DET#2781932 Chrysler 727/A518/46RH/46RE/47RE trans. The 7290 series uses 1.062-inch cap diameter U-joints and is standard for medium-duty trucks and vans.

Specifications

• Part Number: 2903-30
• Brand: UDS
• Series: 7290
• Center u joint to end: 8.031
• Counter bore dia: 1.455
• Hub dia: 1.681
• Notes: DET#2781932 Chrysler 727/A518/46RH/46RE/47RE trans
• Splines count dia: 29/30 X 1.312

Fitment & Installation Notes

When selecting the 2903-30, verify the stop shaft spline count and diameter match the 29/30 X 1.312 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 7290 and adjacent series configurations.