When you say persuasion, do you mean driving something like a prybar or flat head screwdriver between the collar and the housing? I'm going to replace both lines once I get them removed so I did label them as you recommend so I'll know which goes where.
I have a 1974 John Deere 2030 and have a question about removing and replacing the steel hydraulic lines that run from the transmission up to the pump and oil cooler. One of these steel lines developed a pin hole. Apparently the previous owner removed the spacer that keeps the 3 lines...