I'm in the same boat. 1984 Targa and I've removed the two oil-return tubes on the passenger side ( the easy ones to get at ). Old tubes came out easily but when I assembled the new collapsible tubes on my work bench with some motor-oil for lubricant I could hardly pull the tubes apart after putting them together. Needless to say I was unable to expand the tubes. I'm on the hunt for DOW 111 lubricant here in Vancouver, BC.
