Technical Steering shaft splines

I'm using a OT tilt column in my 56 Dodge pickup so will be needing a steering wheel soon. What years of GM wheels will have the same spline OD and count at a 79-80 Firebird.?

Shooting for around a 15" wheel with maybe 2" of dish. I don't have the seat and column completely installed so the 2" is a guess, flat may work but not little bitty wheels with lots of dish!

I think 60s-80s probably, but before I hit the Upull I'd like to be sure.

 

Since your dealing with a vehicle built in 1956. Any GM wheel 1955 and up will fit shaft/splines.

 

Sixties cadillac were an odd spline.

 

^^^^^ Fair Enough. But I’d never use a Caddy wheel on anything.

 

I guess I wasn't clear. The vehicle is a 56 Dodge PU, getting a 79 Firebird column. I suspect your answer will be the same though?

I was hoping to find a chevy pickup wheel that is close to the right diameter. Some of the 60s/70s had a look that i like, right diameter and sort of plain.

 

My '53 pickup spline fit an 80s tilt column perfrctly. Just had to cut about 1/2" of Bakelite off the wheel to let the shaft penetrate adequately. Had to bondo on a sheet metal disk to adapt the wheel shape to match the column top.

 

Thanks Willys! good job and good info.

 

VERY nice work!

 

You we’re clear. 79 falls under 1955 and up.