Broken Alternator Braket

So, I picked up a 77 Winnebago with a 440. Yeah, I know it's not an A body, but it IS a 440 :D Well, the alternator bracket broke at the top left alternator. Can I just swap an alternator off a junk yard 440 to fix my Winny, or do I need to contact Winnebago about this
j
You need to get a alternator with the same amount of amps for that r.v.Find out your amps or can you get that one rebuilded.