I had the opposite problem! Thanks to Michigan winters and the love of salt on the roads I couldn't get my fuel filter off. I ended up replacing the complete fuel line. I had it the next day from the local GM dealer and it cost around $110. That part may be one benefit of living down the road from GM. It was a chore to get in but it has a newer style quick disconnect at the fuel rail. No leaks thank goodness. I cut off the old connector and I'd gladly mail it to you if it would help. I'm probably gong to convert to braided stainless steel lines with AN-6 fittings but that will be at my top swap or the L67 I'm building(long term project)
