I picked up a used tranny and had it installed 4 years ago. It had about 80K on the tranny, 1200 or 1300 bucks installed IIRC. I vowed to never change the tranny fluid again! Haven't had a problem since.
Changed my fluid last year and look where I am today!! I been checking out all viable options but for now she will have to hangout in garage with her sister.