Bought my FJ on Friday, noticed Clunk on sat.
Took it back to the dealer today and the service manager knew all about it right off the bat. Told my salesman "Yup only way to fix it is to replace the driveshaft"
So even though I didn't buy the warranty, they better damn well fix it since it's a known issue and they shouldn't have sold me a car with that issue.
Certified? If so, it's their dime