Guys, FYI: There is an aftermarket Oriface tube on the market that is easier on your compressor and will help your a/c to run cooler-I bought one for my old '94 F150 and my Nephew still has the truck & his a/c is much cooler than mine in my '99 F350 with the vacuum line mod-If I ever have to repair or service my a/c one of these gems is going in!
I think we still have the paperwork/receipt for it-if anyone needs to know more....

The smart oriface tube is at www.imcool.com I think this is the one that was recomended by a member on the FTE many years ago, and I can testify as to how well it works!