4r70w dipstick tube ??

[price209]

Is there supposed to be a grommet in the dipstick tube hole on the transmission or is it just an oring on the tube? Mine just sits in the hole, it doesn't really hold at all.

 

[Broncobowsher]

Just an O-ring. Heald in place with the bolt at the top of the tube. I think to the head or a bellhousing bolt depending on application.