I got over 70k on mine with at least another 12k left. Just had to upgrade to the ZO6 setup.

 

I have 60,000 on mine. Any way to diagnose a slipping clutch?

 

I have 27K miles on mine, but expect to have to replace it within the year. 315 Nitto's are gonna hurt it

To check for slip, take it to the top of third and powershift fourth. Listen to see if the rpms snap down, or pull down. If they gradually pull down, it just slipped.