[Cubcrazy]

Any mechanics out there who can answer this question!
Been working on my work beater the last couple days which is a 2001 Grand Am.
The tranny lines that run to the radiator developed some pin holes so I lost some fluid. Fixed the lines but went to add some fluid and there is no dipstick!! All that's there is a screw in cap on top of the tranny. How do you know when and if you have enough fluid in it?