[J1MMY]

Interesting pic. I'd also be curious to know the diameters of both alternator pulley types.

Going to a dealer isn't an option as they didn't sell these here on my little island. Tbh I would be surprised if this ever had aircon as most of the ex-forces trucks which surface over here are base models. There is also nothing on the heater panel to suggest it. I take it the bracketry on the front of the engine would be the different for a compressor than that for an idler?