I've got an ARB on the way, what type/size of fitting does it use for the air supply at the rear diff? I would like to know before it comes so I can go ahead and order the fittings/line to hook it up. Another question: What type of air line do ya'll run to the ARB? I've heard of people using that good clear blue coiled line that CO2 kits use, I've thought about using the clear vinyl tubing that mcmaster sells, or possible just running full size pnuematic hose the whole way. What would you recommend?