What rust? All my lifetime SoCal 4Runners in my sig line look the same underneath.
This has been my reliability experience with our '06 LX mall queen that we bought (bought out a friend's lease) in '09 with 25k miles...now has 143k miles...
Failed and replaced, or failing now: SAIP failure, on our 3rd alternator as of a year ago, replaced lightly-leaking readiator 3 yrs ago, starter motor as of this week, mechanic says main seal starting to go but I see barely any oil leaking. One or two stuck brake calipers replaced.
PM replacements completed: timing belt and related stuff, rebooted CV's, heater t's when we did radiator, rubber boots over UCA ball joints Replaced the AHC "shocks" as they were leaking per my pricey boutique mechanic, whom I divorced after that fleecing.