I just replaced my entire steering column, with a new wheel, horn button, etc - to get rid of slop and some junk Grant stuff the former owner used. I was able to get everything for it from MidAmerica Motorworks - bit cheaper than Eckler's as I recall, but that piece came with a little horn repair kiit that is sold an MidAmerica.
www.mamotorworks.com
Have fun.
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C3: 1979 Corvette Coupe, Auto, L-48, Red/Doeskin (my wife's fave);
C4s: 1986 C4 coupe (SCCA road race car), satin black, 4+3, Z51 package, L-98; & 1993 C4 coupe, white, 6-speed, LT-1.