Can someone point me to a parts diagram showing the AC lines in a 2007 E350 with rear AC. My SIL bought it used and it looks like someone chopped into the AC lines going to the rear to do a delete or some other mod and installed a valve. Of course, the valve is leaking. We're trying to put the lines back in shape so that he can use the rear AC. I'm trying to figure out which line to buy and how Ford identifies it.

Thanks in advance.