How do you change a fan belt in a Camaro?

You should just have to take a 1/2" ratchet, put it in the tensioner, pull back to release the tension and then slide the belt off. The new one will just slip on. That's if you have a serpentine system. If you have a v-belt system then you'll have to loosen one of the mounting nuts (usually for the AC compressor to release the tension.

If you have more info I can probably help more.

Mike