Nothing extreme about that. Good common senseCopperhead said:I am just one of those weirdos that probably takes things to an extreme. My entire drive train gets lube and fluid changes within the first 10,000 miles of ownership and every 50-60,000 miles thereafter. No evidence that it makes a major difference, but my comfort level is met. And all it takes is looking at the magnetic drain plug on that first Xfer and Diff change to convince one that it is something that should garner much more attention than folks normally give the drivetrain.