Hey, I just bought a 2001 Ranger 3.0 V6 with an automatic transmission
I wanted to change the transmission fluid, but I see no drain plug
in the pan.
How do they recommend to change the fluid?

 

You get a big pan that will hold the fluid that comes out and unbolt the pan and drop the whole pan to drain the fluid.

 

no pan will hold all of the flud, loosen all the bolts a little, then start removing them from one end to the other, that allows the pan to tip a bit, letting more of the fluid out before the pan is removed. once the pan is off, you will still have dripping for a few hours, so don't get too close.