No, they look like this:

 

Ah I saw them. You saying I should replace them? Not just put new seal on it?

 

Molded pistons have the seals "molded" to them, hence the name. The seal is part of the piston and cannot be replaced separately.

 

You're thinking of servo pistons. He is talking about clutch pistons. All clutches have pistons inside.

 

Just talked to my friend at his trans shop.

He show me how to apart torrington bearing. He said you don't need to replace thrust washers Until there wear/damage on it.

Oh by way he said my old torque converter with yellow fluid were really badly burnt and smelly.

I will need call shops tomorrow for quote parts on that pistons. Yes I thought they were servo pistons so new stuff for me to learn.

I got torque converter for $180 Model is F-59 but old one was FM-64