A U-joint from Howe's DD group, with a 3/4" double-D (DD) end and a 3/4"-20 spline end.
- End 1: 3/4" double-D (DD) (code 19)
- End 2: 3/4"-20 spline (code 21)
Match your shaft splines against the ends listed in the specs before you order.
Howe Performance part number UJ-DD1921.