it'll be snug but shouldn't take brute force - make sure the inside of the jacket is clean and smooth and the mast isn't bent off-center ....there should be a slight flange on the top that sits on the end of the jacket and gives the ground for the horn .... on the side of the column about where it hits the dash support clamp there'a a squarish hole in the inner side, that's where the wire comes out to connect to the under dash harness
Bill