For all 1989 to 1993 Cummins Diesel powered Dodge D250, W250, D350, and W350 trucks Dodge standardized on a an 4-3/16" wide external snap ring u-joint with 1-3/16" diameter cups. For normal service parts, all you really need to know is if your driveline a single shaft part with 2 universal joints or 2 shaft assembly with 3 universal joints and a Center Bearing.


