Just finished replacing clutch on a stock truck... 84K miles. Clutch was replaced due to leak on front of transmission, must have been put together on a friday, not sealed around base of release bearing tube. Clutch looked good other than being oil soaked. 1/3 wear or less. Have towed 30K miles and driven in NYC traffic for 3 yrs. From indications this clutch could go 200-300K without any 'other' problems. I haven't been overly kind to it either.