THUNDERBIRD THUNDERBIRD 1955(W/ DRAIN PLUG) IF31A THUNDERBIRD 1956(W/ DRAIN PLUG) IF31B THUNDERBIRD 1982 IF23E THUNDERBIRD 1983-1984(W/PAN) IF23D THUNDERBIRD 1986-1988(W/PAN) IF23C THUNDERBIRD 1989-1991(W/PAN) IF23B THUNDERBIRD 1983 IF23A
