Tranny return question

Anyone know which line is the return here?

 

Disconnect both lines coming from the transmission. Put the hoses in a glass jar. Have someone just crank the engine but shut it off right away! The one not spraying fluid is the return line.

 

Drive it for a while until it warms up. Then feel both lines, the hot one is the feed, the cold one is the return.

You could also trace the hoses back to the thermostat on the transmission. The top straight barb is out. The bottom bent barb is in.

 

Awesome thank you

 

My top one in the engine bay gets hot first, but they cross over each other a couple of times.

 

The suggestion by @SuperWhite20 is the surest method. Observation by @timsp8 matches my best "guess" from Toyota parts drawings, but seems counter-intuitive to me.

Let us know what you determine.