Re: 1973 f900 firetruck 534ci
i found one place, vanalstine 1-800-272-1797, they have lots of obsolete heavy duty stuff. if that doesnt work i'd try obsolete ford 1-800-654-3247, they only carry stuff up to 1 ton pickup but they may have a lead for u, worth a try. good luck.
68 Ford Country Sedan Wagon-390 FE, C6, 9 Inch
87 Chevy Caprice Classic Wagon-307, 2004R, 10 Bolt, what can i say, i grew up with that car