I want to drain some tranny fluid from my 1999 f-150 where do i do this from please be specific as i am new do auto work bur want to do this myself... I only need to drain about 14 oz. i want to add slick 50 transmission treatment. I thought i bought treatment for adding to engine in oil but it was for tranny.

 

What you need is a sipon pump (less than $10 at Advance I think). With that you stick the tube down into the tranny via the dipstick/fill tube and pump out fluid.