I am replacing the rear hard lines in my 94 yj 6cyl. I want to use the tubing that is already fitted with the fittings on the ends. When i went to buy them they need to know the length and wanted me to bring them in to size up(i don't want to take them off until i have new ones to go on). I was hoping someone else had used these and could tell me the proper length tubing to buy. I think 20" and 44" but wanted to make sure.