I have the filter and gasket kit to change the transmission fluid in my 1986 300E (722.320 tranny). Unfortunately, the kit did not come with drain plug seal washers for the pan and torque converter. I understand that they are the same size, but one is copper and the other is aluminum. Since I'll need to pick them up at NAPA, does anyone know the size and material for each? The information doesn't seem to be in any of my references or on this site.

Thanks in advance.

Brent Smith
Atlanta, GA
1986 300E (Purchased in 1990)
273,000 miles