My understanding is that there were 2 different ac systems. The more common I came across is with the alternator outside, close to the battery.
I've considered the upgrade, but I would have to do the rest correctly, and upgrade the output wire and fusible link.
to my observation and opinions, having own both kinds, the one with the A/C in the center and the alternator on the outside closest to the battery looked like it was Subaru Factory done, while the one with the alternator in the center and the A/C closest to the battery was professionally rigged on, probably done at the dealer at a customers request to have this vehicle but originally didn't have A/C. i honestly prefer the alternator in the center since any generic A/C compressor fits it, and they are really simple and on their own wiring diagram, although tightening the belt is just sticking a pole between the 2 components and eyeballing it.
heres the 2 examples below
Edited by Subasaurus, 23 February 2018 - 10:47 AM.