My wife was the one that decided our 68 had to have a\c after a two day August trip home from Georgia in pouring rain. Hot, sweaty, lousy defrost, the a/c fixed all that
I went with CAA but at the time all they offered was a cable operated system which is a pita. The electronic one should make the install cleaner.
Good choice on the Cougar vents, but wow 400 bucks, a bit steep for me. The supplied vents are crappy, really crappy, the center vent is fair.
The supplied crank pulley was crap as well, I went March billet, did not like the compressor mount either so I made an aluminum one.
Over all my wife is very pleased with the way it works, me too.
If you want any more on my set up you are more than welcome to pm me.
 Disregard the ugly green rad hose it's gone as is the P/S pump, got EPAS now.

Last edited by Rudi (12/13/2019 10:09 PM)

Or, convert to Fox era serpentine belt and use the Fox compressor, which is a good design.  Parts are both cheap used and reproduced, including all mounting hardware.  That's my plan.  I even got an adapter to allow me to use my Saginaw PS pump in a Fox bracket.  This is going to solve several issues for me: alternator squeal, desire for a single belt, and a factory style installation.  Just another thought. 

The Fox compressors can typically be found for less than $100 used, and if so inclined can be rebuilt for about $36 worth of parts (try Century Auto Air at www.shopcenturyautoair.com).  The compressor is a Nippondenso 6P148A, and there's a sticker on it that will say that.  These were R-12 systems originally, but can easily be converted to R-134a.  Rebuilding the compressor allows you to completely remove all the old oil and and reassemble it with R-134a compatible oil (I use PAG).  You can also change the charging ports to R-134a size to avoid having to use unsightly adapter fittings.  LMR stocks the R-134a ones, among other parts houses.  You will need a special tool to remove the clutch, but I simply got one through the free rental at the local parts store. 

The 6P148A is a good, simple design that uses only about 5 HP to operate compared to the old compressors that could soak up 20-25. 

I just ordered the A/C kit from Classic Auto Air. Well actually I ordered it via Jeggs. Classic wanted $1524 with $87 shipping. Jeggs wanted $1524 with free shipping and I also found a SANTA coupon for $100 off. Total with tax is $1488. I also ordered an new aluminum radiator from http://www.speedcooling.com/1967-1970-Mustang-Aluminum-Radiator-22-PS-Outlet.html for $230. 

I'll start with the above mentioned orders and see where it takes me. I know more $$$ are needed to install it to my satisfaction.