Maybe I'll try the Lucus Transmission fix. Honestly it drives fine, I'll probably just wait til it starts having more problems, I just don't want to get stranded somewhere, or have to do the repair in a hurry and not being able to get a good deal.
I took it to a mechanic who told me multiple seals seemed to be leaking, and he suggested a rebuild. I know a 4Runner wouldn't be the greatest purchase but selling it and buying another car would cost a lot good amount of money. Also its fuel efficiency is not that big of a deal cause I only put 100 miles on it a month (25-30$ in gas). If I did buy a different used car I would get something more reasonable. But I think suggesting I sell it ignores the significant frictional costs of buying and selling vehicles, especially selling a partially broken one.