I posted this over on the facebook forum but thought I would try here since I know a number of you have done drain and fills on your transmission.

I used the washers with rubber centers last summer.
This week the drain plug was leaking and the fill plug was still ok.

Yesterday, I thought I would try the copper crush washers instead.
Now the drain plug is ok but the fill plug is leaking.

Everything torqued to spec 28 fl lbs

Can't seem to get the leaking stopped.

What are you guys using?