'77 F-350 radius arm blues..:(

I've got a chance to buy a 1977 F-350 Camper Special in good overall shape on the cheap. The truck has no real issues other than one of the radius arms attaching to the I Beam and the bracket behind it being broken. What I NEED to know if an F-100 to F-250 of the same vintage uses the same arm as an F-3. I don't want to buy an Ohio rusty POS so I need to know what will work before ordering an out of stater.

Thanks,

Jan

Not 100% on this but I think the arms will be the same on an F-250 with the highest GVW rating (8100?) but the brackets will need to be off a F-350. Check over at Ford Truck Enthusiast tons of information, free to join.