I have using a 49 snowblower on a 1987 316, and just bought a 1990 318. The chute control bracket that mounts on the pedestal does not fit on the 318 like it did on the 316. The vented area on the pedestal of the 318 is removable sticks out about a 1/4 inch causing bracket to not line up with the bolt holes. Is there a different bracket for this application?