A U-joint with a 3/4-inch double-D (DD) end on both sides, from Howe's DD group.
- End 1: 3/4" double-D (DD) (code 19)
- End 2: 3/4" double-D (DD) (code 19)
Howe lists this joint family in a long list of spline combinations, so if your ends are different, check the other UJ part numbers.
Howe Performance part number UJ-DD1919.