i think the 37 was the last of the keyway type steer wheel and the 38 used the splined system but the rest of the wheel was the same. You could look for a 38 or later wheel to trial fit to confirm my theory.

Tony

The 38 is splined. Mine below.

Thank you.  I will look for a '38 steering wheel and see if it is close enough looking to the '37.  Also with a little machining if necessary, I am thinking of getting a universal 3 bolt to GM spline adapter.  The idea would be to align the '37 wheel hub to the adapter and drill 3 holes to accommodate the 3 bolts to secure the wheel to the adapter, then put the whole thing on the GM splined column and tighten the center nut. I might have to run a larger bit on a drill press down the center of the '37 wheel in order to make room for the nut to secure the wheel to the column.

Bill

I'm following up in case anyone can use the info. I ended up with a '41 steering wheel. It looks almost exactly like a '37 steering wheel but it has the 36 spline 3/4" shaft interface I needed to use with a more modern steering column. I mated it to a '67 chevy steering column with turn signals, hazard flasher, and tilt. I have to do some light modifications to get the horn wired right, but it looks like it will do the job I need.  The new steeling column is 2" diameter versus the original 1-1/2" column so the mounting for the floor and the bottom of the dash will need to accommodate the 2" diameter.

Bill