Gt grant steering wheel has gap

When I was replacing my turn signal wire harness I went ahead and bought a new grant mounting kit (I already had a gt grant steering wheel on it before) and when I went to replace it now I have about an inch wide gap between the column and the mounting plates. I've got the nut tightened down as far as it will go and the cap on the column is shoved down as far as it can go. Also the spring that holds the horn button in up just slides around with nothing to hold it in place (looks like the post had been cut). Does anyone have any suggestions on how to get rid of the huge gap and fix the horn or should I just replace it with a genuine pony steering wheel?


P.S. it's a 1966 mustang.