Rear aircon units info req'd

Without attaching a roof mounted (on top of roof) system it would be a fairly big job although not impossible. I reckon if you could pick up a rear aircon unit from a prado grande (including the ductwork that goes to both sides up top) it could be done. Piping would be better done by an aircon mob. There is quit a lot of piping (joins) running under the floor of mine from the compressor where it goes two ways. Two pipes to the fire wall for the front evaporator and then another two running right up to the drivers rear quarter. It doesnt have the thermister (electronic thermostat) in the rear unit itself it is located in the rear of the centre consol which controls the temp and also fan speed. You would also need this if pulling out of a prado for it to operate. I use my rear air quit a bit especially when my shepherd and rottie are in the back.

I have an 86 Sahara with rear air and the rear outlet goes across the roof just behind the rear seat.
The condenser is just inside the back tailgate and restricts the rear access a bit.
The controls are just behind the rear door RHS in the roof.
There is lots of plumbing underneath the car, but I would think you would need quite a bit bigger compressor to do the job.
Maybe you could find something in the wreckers.

I know the Statesmans have a lot bigger compressor than the normal Commodore and is a much better AC because of this.
More volume to cool down, so bigger compressor.

The dog alone will generate a lot of heat, so your AC will have to work pretty hard.

Dave

Try this maybe

It can be done but expect some where between $2500 to $5000.

The 110's came out with factory air on a few but most where fitted here in Australia with a locally made air con kit.

Compressor will cope but the condenser may be a little small depending on what rear evaporator you want to use.

There are many differant off the shelf evaporators you can use or you may want to goto a cutom made evaporator with ducting.

What sort of dog are you trying to keep cool?

Regards Richard