Hmmm, if you cant tell the general area of the leak, when you can see it, how can we tell from the internerd with no foto's?
Clean it all off, keep an eye on it, proceed from there.
Could be tranny cooler line connections, lines themselves, or any one of a number of seals.
1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.The Cherylkee....
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover 4.6 HSE
2000 4.7 4WD WJ with a rebuilt motor.
4.3/700r4/new frame buildup (YJ)....
Years to gain the hands on experience, and offer it freely.
Minutes to gain the knowledge from the internet, and quote it just as freely.