Transmission Leak

[waltpowell]

I have a 1984 JD 550B. It has recently started leaking transmission oil from somewhere around the frame level. it only leaks when the fluid heats up. so when i Idle down to look for the leak it stops. it is possibly comong from where the transmission cases come together or one of the hard lines that goes into the bottom of the transmission. Anyone got any suggestions.
thanks
walt

[JWB Contracting]

I would pull the stump pan, run it up on some blocks and take a look. Follow the oil cooler lines, if your lucky it will be a cooler line. Common problem on 350's.