Neutral safety switch was replaced with rebuild last August. Switch was leaking and replaced in January...switch is seeping again. I am going to do this myself instead of taking it back to shop. If I drain about a quart of atf will that be enough so I won't get a face full of fluid replacing the switch?

 

Drained entire pan into clean bucket- removed switch without a drop coming out. added gasket maker around oring- waited 30 mins. Refilled fluid. So far so good