On the drivers side there is a transmission (end cover) it's leaking a little, what is this cover for? Will I need to drain the trans. in order to fix it? What is best to use gasket maker or a gasket, i bet it's ahrd to find a gasket at the parts store ?

Cover look something like this. https://www.moparpartsgiant.com/part...e~4659636.html

2005 neon sxt 2.0 , 2220,000 miles