I got 100k out of my greasable spicers and figured they should have gone more then that, I kept them greased too. It was mainly my center joint though that went out. Mine may have worn faster due to driveline angle problems after the 6-speed install. I have since made that better. My cousin has about 300k on his stock center joint. My next joints will probably be OEMs as they have a much better seal with two fine point tight fitting lips so they don't loose their grease. The greasables just throw the grease back out so fast and probably let trash in too. I now have some other brand of cheaper non-greaseable ones in there from Carquest and will see how well they hold up. their seal is no better looking then the Spicer greasable ones.