I have a slow antifreeze leak coming from the bell housing and I am not sure were it is coming from, afterm running the motor for about half hour it took about 3hours for itto start the slow drip.

Engine blocks have multiple freeze plugs, also called expansion plugs, installed to block the holes used to cast the metal. The plugs prevent coolant from leaking out of the block, and if coolant freezes (due to improper concentration or extreme temperatures), the expanding ice pops the plugs out to prevent block damage. Now, from the factory the plugs are usually made of steel and therefore tend to rust out over time and start to leak antifreeze. Considering there are no cooling system components inside the bell housing, it is highly likely that either one of these plugs are leaking OR something higher up on the engine is leaking down onto the bell housing, such as a head gasket or coolant hose. A cooling system pressure test would need to be performed to isolate the source of the leak. You can read more here:
https://www.yourmechanic.com/question/water-leaking-out-from-side-of-engine-by-shawn-m

there almost certainly will be a freezeplug in that area , but first make completely sure the coolant isn't leaking higher up and looks like from bell housing , get the area steam cleaned and make sure it's not from the head gasket or another freeze plug , 30 minutes spent doing this could save you time and money dropping the gearbox etc , hope this helps

underneath the battery, which sits inside a big black box, is the bell housing. the bell housing is shaped like a bell, oddly enough, and it mates the transmission to the engine. at the top most point of the bell housing you will see a pair of wires connected to the tip of something which appears to be screwed into the side of the engine. it is screwed in there and it is the temp sensor. when you take it out, antifreeze will come out in a trickle so make sure it is not hot and you have the new one ready to screw right in immediately. it is a plumbing thread so do not go gorilla on it, snug it in and then a half turn.

It sounds like a leaking intake manifold gasket to me. (Very common on GM V-6 engines) Look with a flashlight and see if you can see antifreeze running over the top of the transmission bell housing. Check both sides. On the side nearest the windshield and the side nearest the radiator.
Don't drive the car with a coolant leak. The aluminum heads are very unforgiving when it comes to overheating.

Most likely the intake gasket is leaking.You can check under the ac compressor and back by the transmission bell housing these are where the intakes usually leak. If you have a uv light it will illuminate the antifreeze very brightly.

Its your rear main seal leaking. Have to pull the tranny to replace

There is a freeze plug on the back of the motor and you will not be able to get to it until you remove the motor from the transsmision.....Sorry to have to say ! It is behind the Bell housing.

There is a freeze plug on the back of the motor you cain't see.[under the bell housing]...may have a rust hole in it or just bad ??

If transmission fluid is dripping off the bellhousing your torque converter seal is leaking or your transmission pump seal is leaking. Chances are the torque converter seal is leaking since the torque converter is spinning on it any time the engine is turning, the pump seal dosen't move it just keeps fluid inside the transmission. Even though it leaks with or without the engine running I'm willing to bet if you got underneath it with the engine running you will see it leaks more with the engine running. Now if either seal is leaking it will require the engine to be removed from the transmission to get to the seal. Sorry but this isn't going to be a cheap quick fix.

Sounds like your right rear freeze plugs are probably leaking .. but first you need to make sure its not coming from up around the rear of the intake before pulling the transmission . this would be the best way to fix this problem .. thanks jerry holler if you need more.