You're sure it's your leaf springs? Do you have a friction sway control bar? Those make a lot of creaking noise, especially if they get wet. Mine always creaks.
What is a xj1z? I'm not finding that model on Jayco's web site.
And since when have they been putting leaf springs with Equa-Flex suspension components on hybrids? My 2013 and my 2003 hybrid have/had Dexter Torflex axles. They have been flawless. Why the change? Are they cheaping out on us?
2013 Jayco Jayfeather X20 E, 2008 GMC Sierra 1500 Crew Cab Z71 SLE