91 3.4 Lumina Coolant Dripping from Tranny

hi i posted problems of slipping tranny, and i put car on ramps and let car run for 10 min to warm up oil to train, now when i laid under i see coolant dripping from 2 spots on the tranny, 1 looked like fron of tranny to engine is from the seal and the back was tripping from the bolt hole that would have a bolt but doesnt at the back of the tranning facing rear of car, so what the hell is that? i didnt think engine coolant was there , or is that maybe the heater core leaking?