When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Different years have different types of lines. The earlier trucks had lines that screwed into fittings externally from the trans tank, later years have fittings that screw into the tank and radiator.
I guess I'll have to go see my local Ford dealer and order one of the o-rings. I'll get another trans pan gasket while I'm at it. I might as well make sure I'm getting the correct parts...