On my F-150. The one that runs aaaaaalllll the way back to the rear axle. Turned out it was in sections so instead of running the whole thing from front to rear I only had to replace ~5 feet. Way easier than I anticipated. Then, of course, when I started to pump them up yet ANOTHER line blew. Thought I was taking another ride to town but this one turned out to be in about a 6" piece coupled to a much longer and curled around a few times line that is fine. So I kinda stretched the curls out a bit and it screwed right in where the old one came out. Not sure why that little piece was in there. Anyhoo, so far so good but what should I notice while I'm under there? the damn bracket that holds the front end of the leafsprings to the frame is hanging by a thread. Sigh... Now what? Worth fixing? Hard to say. PITA I'll bet though. The other one is not as bad.