Photos of factory AC compressor and serpentine belt system.
I'm running the stock 5.9 Magnum serpentine set-up, the Vintage Air Gen IV evaporator and an aftermarket triple-pass condenser for R134 on the Magnum I installed in my '68 convertible.
The servo style Gen IV fits perfectly under my dash and blows very cold. I did have the factory A/C line manifold that bolts to the top of the compressor shortened a bit.