Can anyone give me some insight on doing a auto trans service? Looked for a fill port and could only find this black round cylinder with nut looking top on the right side. Thought maybe that was the refill location. how about checking the level after service, im assuming there is a check plug. Also is there a drain bolt? Havent been able to get it on the lift yet, should be able to one weekend soon but would like as much info before i get into it.