JB -

I'll share mine. I had my X since 3 miles on the odometer. I'm pretty religious about fluids - it's easy and cheap for me. Trans, I must have done at least 2 bolt drains, then a pan drop, then another bolt drain - all by 100K. At around 100K, I did another pan drop change. Shortly 2-3K after that, it sh1t the bed and I had it rebuilt.

YMMV.