I heard they use a different shock on the rigs with a tow package or fx4. Any truth to that? I am just about to roll 10k and don't have any leaks and have towed a bit, bombed some dirt roads in moab, and hit some rutted roads rough enough to lift tires off the ground. I think if my shocks let loose I would probably upgrade them rather than warranty replace them for the same thing. Think the dealer would work you a deal to install a better shock rather than warranty replace with the same thing? I know my jeep dealer would work with me about stuff like that. I had a steering stabilizer let go and they installed a teraflex stabilizer for me for free if I bought it from their parts department.
What's interesting, on performance shocks (king, elka, fox, etc) they recommend rebuilds every year to two years (or less) because the oil is basically shot by then. They aren't using magic oil in factory shocks, so they really are probably ready for replacement after a year or two anyway.
I talked to a guy at teraflex who said they are looking at possible Falcon shocks for the 2018+ expedition. They make them for the F150. He wasn't certain the feasibility of the Expedition due to the market and how many owners would want an upgraded shock like that...
