JFortier777, you can give up A/C for it now! Just convert your A/C compressor into an air compressor. All you have to do is put a filter and oiler onto the low side and put a tank and drier on the high side. But I'm not giving up my A/C for air I like the kits they make for the TJ where the alternator and York compressor share a mount point on the engine, that way you get to keep your A/C

Will do. The first (and most difficult step) is figuring out how the heck I'm gonna mount this thing!

Is it possible to make a removable air compressor? For example, I don't want one on my KJ all the time, just when going wheeling....so is it possible to make one that I can slap on just before hitting the trails?

I don't know ANYTHING about how these things work so forgive me if I sound a little dumb.

Most people use small 12 volt compressors that plug into your cigarete lighter or clip onto your battery terminals. These are of course removable.

CO2? Explain how that works...by my guess when you compress air it turns liquid? And then when you use it, in tires ...paintball guns etc...it turns back into air form?? Info please and also where I can get the tire attachment and all that stuff.

Some people carry CO2 tanks with them when offroading. When compressed CO2 reverts to liquid form and is very dense. The standard 10lb. bottle will fill something like 40 tires before it needs refilling.

What I'm trying to do is install a belt-driven York a/c compressor to use as an air compressor. They put out a lot of air very quickly. This saves a great deal of time airing up tires and when combined with a tank allows you to run air tools.