I went through the same thing with mine. Two of the three tabs were broken off. I would highly recommend contacting Tony Smith:
Tony Smith
4-5-6 Chevy Trucks
560 South 11th Street
Kansas City, KS 66105
913-207-7789
I got one from him and it is in near perfect condition and for a very reasonable price.
X2
The upper bonnet on my column was also screwed up and Tony fixed me up with the parts I needed.
I hate to be a nuisance, but did you check the lower column bearing too as I suggested above?