Does anybody know what belt I'll need to buy if I delete my AC?
Nope, you'll likely have to measure it...
The sticker on the core support of my Sport showed two belts,one with and one without a/c.I bought the one without a/c and it fit great.although I've never seen an a/c delete Bird from the factory.I now have a/c and smog delete,and can't remember the length.Call Autozone and ask them if they have a belt for a 5.0 T-Bird (or Cougar) without a/c.
Well my cars got a 2.3 but I get what you're sayin
There's always a way.