[67ChevyRedneck]

Next, Remove the caps off of the drier and the lines.

Put the proper sized grommet onto the lines (it's kinda obvious which fits which) and apply a liberal amount of the supplied lubricant to the O-ring (the tube they give you has quite a bit and I had some extra when I was done.)

Using a wrench on EACH LINE (so you don't bend or break anything) tighten the fittings.

*NOTE: Vintage Air warns that you shouldn't remove a line once it's installed without replacing the grommet, but they don't give you any extra!