Plugging AT cooler lines

[edbods]

For a 67 Fury with a 22 inch radiator, what size are the AT cooler fittings on the bottom tank? Am hoping to find some plugs for the AT cooler lines once the radiator is out, but not sure what size they are.
Back flushing with a flush gun helped a lot, but some of the tubes are still clogged so looks like the rad is going to have to get taken apart and properly cleaned.

 

[Big_John]

I take some foam ear plugs, roll them like I'm sticking them in my ears, and stick them in the lines. They expand and seal the ends well enough to not get junk in them and not drip.

I even have a picture! LOL!

 

[edbods]

ooooh that will do perfectly. i even have two pairs right next to my keyboard, sweet!

 

[SIPLOWGUY]

I wasn't sure what you meant. I usually connect the lines together with a piece of hose. I clamp it in case I need to briefly start the car or move it.

 

[edbods]

All good, Big John's suggestion worked perfectly. Radiator is off at the shop to get rodded out, gonna take a few days though which is a shame, was a blast driving it around while I could.

 

[Sixpactogo]

I bought these many years ago and have used them every time I need to disconnect transmission cooler lines from either the trans or radiator. Two 3/8" flare caps and two flare plugs