help

[rangerl4]

I do not know if this has been talked about but here it goes. I have a 1994 ranger with a 2.3l and a4ld trans. My tranny is shifting at an extremely high rpm. I Have a proper amount of fluid and it is a good shade of red. I was wondeering what might cause this problem. I was also wondering if I got a basic rebuild kit, would thiat fix it?

Thanks,
Ryan