Im gonna do a oil cooler fit to my auto box but which pipe is the feed and which is return and does it matter which way they go into the cooler?

What size fittings are they as well so i can get the right ones on the cooler

Thanks

if you buy the cooler from z center it comes with all the required fittings.

I wasnt going to fit it in front of the rad though , want to angle it back slightly and place under the engine oil cooler

having looked at the pics i dont think where i want to place it will work though...rethink