the alt doesn't know or care if it is being controlled by an external VR or a computer. That same alternator was used for about 8 years, and it was regulated both ways. and serpentine pulleys can be swapped out for V pulleys and vise versa easily enough... done so more than once.

on the 91s (seems worst year for VR part of computer brain frying) vans/pickups/Dakotas, I have seen them all with the regulator wires dug out of the harness and a plain old Mopar VR wired in.