speedway motors. sweet manufacturing unisteer part number 8050880. 3/4-36 spline by 3-4 double-D. worked like a champ for me. had to machine the column shaft for a double-D instead of a single-D. my only issue is it doesnt allow for subframe to body flex, still master-debating on how im going to fix that, but its on the back burner for now until i install my new column. i went with this particular one to clear the 74 A-body drivers side manifold in my early-a.