Technical What year did GM change Steering wheel splines?

I was looking for a different steering wheel for a 50 Olds I have, going to change the column also, which got me thinking what year steering wheels fit what year cars. When did the splines change, or did they? So let's hear what everyone knows for sure about this.

 

I know a 51 Chevy had the same splines as a 97 Monte Carlo. So I'd ***ume same in your case

 

Can run through how I know if you want lol

 

Cadillac used an odd spline up to about 66 or thereabouts.

 

So 51 Chev to 97 fits. What about other GM brands, and what about before 1951?

 

The splines are not the only thing you need to worry about, if you want the horn to work, and the turn signals to cancel, and for it to look "right". The size of the turn signal switch changed over the years, and they changed the arrangement of the horn contact, and the turn signal cancel cam. Of course early cars didn't always have turn signals, so the steering wheels were different in that regard also.

 

My '37 Chevy truck is tapered, the '40 gear box I put in was splined, and a '46 I had for awhile was splined. All three were 3/4" diameter shafts.

 

I am using an early Chevy C10 column in one of my Buicks, and the spline is the same for the 41 Buick Sports wheel I am using. Like Jim said, the signal light arrangement differs as Buick offered them in 39. Because the Buick arrangement was larger and used a cam to cancel the signals, a little adapting will be needed.