Borgeson coupler help

Well,

I spent all evening with it. I shaped it down with a lot of careful grinding (mostly trying to reduce the outside diameter), ran a new weld bead, and cut it to fit. It will work. There's only a little gap between the header pipe and the u-joint, but I think it will work. It isn't my prettiest work because I'm lousy at welding around small radii.

Flaming River has one here that already has a 1/4" less outside diameter (1.25" compared to 1.5" on the Borgeson). Part number FR2580 for the stainless one, measuring 11/16"-36 spline by 3/4" SMOOTH. If my ugly-*** modification doesn't work, I'll buy this one.

FYI.

-marcus