Its the dealer not the manufacturer. Took my truck in and they replaced the seals on the transfer case. This did not solve the problem the whole bottom of my truck was oil soaked. The first 03 trucks they had a problem with the plug in the yoke leaking. Checked out my truck after cleaning the yoke and sure enough that was the problem. Took it back to the dealer and they fixed it by replacing the yoke plug. Would not deal with those people again they can't be trusted.