Mine went 165,000 before it quit - very suddenly and completely, I might add. I did nothing to it except one fluid (&filter?) change at 100,000.
I'm a lead-foot, but I live in a mild climate, so maybe that helped to give it a long life.
I didn't rebuild the old one. I had a reman dropped in with a 3 yr warrnty. It's not as crisp shifting as the first one, particularly on downshifts. For instance, the original would drop instantly from 4th to 1st. The new one hesitates in second before dropping down to first. But if it lasts another 100k I'll be happy.