How will I know which I need Component Y3/6y3 is the one on the printout.. Is this easily replaced ? I took out and reinstalled the engine and transmission myself when I rebuilt the wrecked front end. If the soleniod is an exterior part on the trans and can be replaced without pulling the unit I will like to do it. I assume that there are 2 soleniods from your post. I assume that this is not too difficult to do with a 30 dollar part.