My 360 build

Yep....if no junkyards around, go to Autozone and buy a starter that would be for your the truck you describe as the old rusty one. Anything with a 5.2, 5.9, or 3.9 in it....the starter will bolt right up in your car. Anything 3.7, 4.7, 5.7 won't fit. Stick your old one back in the box for core return. Dude at my Autozone told me to do that....they don't care. Car sounds good!