Looks like I have a new leak. I couldn't find a definitive answer to the ID of the hoses.

i don't know about the size, but i hope you know it takes special trans fluid hose and not fuel line! i could only find it at napa. autozone and other big box store looked at me like what do you want a miracle? when i asked for trans hose! mike

When i changed my hoses i went to autozone as they had goodyear transmission hose by the foot! just be careful not to bend or move the steel lines at all as they have a tendency to break due to rust and thats 120 bux from the dealer for 2 steel lines with fittings i know...i had to purchase them myself due to this error.

oh and the size is 3/8ths id

I have a rodeo 2004 and there are 2 oil cooler fitting at the bottom of the radiator.

Which is the return line back to the transmission pan?

Is it tough to get the line off the oil cooler fitting? Will the line breaks or something? And, is it 3/8 or 1/2 ID hose?