The best way is to try it but make sure that the wheels are about the same Dia. unless the car has power steering.
TM
TOM in Bethel ,Vermont
aka: Bluedot Kid
1962-68 45th ENG. (DT)
School of Hard Knocks C l a s s of 1960
The wheel will probably fit the splines, I put a '71 Bird wheel on my '57. However the horn circuit will be different, the '56 has a wire through the hollow steering shaft, the '66 will have a horn brush arrangement in conjunction with the turn signal switch. The turn signal cancelling cam arrangement is probably different also.
John