GM 5L40E filter stalk seals the part of the filter that fits into the trans body .
The filter has what are called 2 red seals and 1 white spacer/seal .
Every time i walk past the one in the shed i ponder the question , do the seals stack on top of each other or should there be a space between the 2 red seals ?
The filter i walk past has the white at the bottom a red sitting on top of the white and the other red up near the top of the neck of the spout .
The top red is fixed fast to its position and has not been moved when the filter was withdrawn .
Both the red seals have grooves around their outside like some seals have on their inside .
The bottom red seals groves are mostly still intact .
The top red seals grooves are virtually gone and is almost a smooth surface . ( I presume from the filter moving about ) .
I fitted the new filter with the seals all one on top of the other with no spaces .
The car has only done about 6000 km since the filter swap and it`s not doing anything it shouldn`t that i`m aware of .
For your information it drained just under 7 ltrs and it filled just under 7 ltrs .
I bought 12 ltrs because i had read i should get 2 changes but i think that may have only been for an oil change and not with the filter as well .
If you missed it my question is about the seals .