Question: Is the Air Conditioner Compressor still in place?

The A/C and Non-A/C use different pulley's. The water pump/Fan and crank pulley's are different. There is an idler pully on a bracket and other different brackets too.

Do you have access to someone else's similar car to compare?

If you can find the Factory Service Manual and Parts Manual that might help too. The A/C on my Charger is in storage in the garage and has been for decades.

When I first switched over to non-A/C, I tried using bushings, etc, to get the bracket belt alignment correct. Eventually, I got the correct pulley's and that solved the problem.

There are also aftermarket pulley sets.

Maybe someone can post pictures of their engine compartments?