Rear axle seals have been a problem on the 3rd Gen's. AFAIK, there is no official Toyota SB or Service Campaign. Allegedly, according to Right Toyota in Phoenix, the replacement seal is a superior design to the original seal. Mine finally went south at 51K and that was after numerous wheeling trips and pulling the axles to install a locker. Some say it's due to not keeping the breather clean, but I never had that issue. Not like we see a lot of heavy mud around here.

I can't remember who it was, but someone on this board has had like five replacements <img src="/forums/images/graemlins/shocked.gif" alt="" />!

Mike