I'm in the process of replacing all the under-hood rubber and removing the factory A/C bits from my 73 Maverick. The A/C system will be replaced with all new components, except what's on the passenger compartment side of the firewall. This was not particularly difficult job until I tried to remove the evaporator valve. If I apply too much twisting force on the fitting, it will bend the evaporator pipes into a pretzel shape. I don't want that to happen, because then I'll end up having to take the dash apart to replace the evaporator, too. My brain says I need some way to hold the expansion valve solidly fixed in place. Just using two wrenches isn't cutting it. Any ideas?