There is 1 fan for the A/C and the other fan is for the motor. The one for the A/C I would not disconnect it if your radiator been upgraded to the Alluminum core. If you disconnect the A/C fan your A/C won't get cold like before. Something to think about.

EDIT:
I had a chance to look at pics of my set up. The fan on the right is your A/C if your facing the vehicle looking toward the firewall.