After over heating, started making a slipping sound when I try to start it. What's wrong?

you need to look at the tranny cooler located in radiator that's the only way tranny fluid can get out but how its crossing over to motor oil im not sure unless you also have a motor oil cooler in the radiator.and that will cause tranny problems ,don't try to drive till you resolve these issues., my other thought is oil is leaking out back of motor and mixing with leaking tranny fluid, try draining tranny first to see if motor oil is really in tranny.

if the transmission mixing with the water or anti freeze .that mean your radiator is bad and needs to be replaced

If it is transmission fluid it is likely the heat exchanger (or cooler) has sprung a leak. The cooler is often integrated into the main radiator bottom tank. If fluid is entering the cooling system it is possible coolant could be entering the transmission.

Tranny fluid will appear clean and floating on the surface of the coolant and is likely to be pink or red while if it is engine oil it will be an altogether dirtier colour and more viscous. Try capturing a sample with some clean white tissue when the engine is cold.

Engine oil in the coolant could be a sign of a failing cylinder head gasket.
A failing head gasket is likely to produce unusual cooling system symptoms including ejecting coolant from the reservoir while a leaky tranny oil cooler is unlikely to have much effect on cooling system behaviour except for the obvious...

If the radiator has tranny fluid mixed in with the coolant, then you have an internal tranny cooler leak. At the one side of the tranny, in the saddle tank, there is a tube. This tube allows hot tranny fluid to enter the rad and be cooled before returning to the transmission. It should be totally isolated and submerged in the coolant tank. Occasionally they can leak, and the two fluids will mix. You will need a new rad to repair the problem. It would also be recommended to have the tranny fluid and the coolant flushed after wards. Oil of any kind does not mix well with coolant, and could cause future damage to the tranny more so than the engine.

Low fluid light means check your coolant which prob whats on the ground. Depending on the rate of leakage fill coolant start try and locate leak sounds like a hose or water pump slow leak prob water pump fast leak hose good luck

Sounds like a bad radiator. The radiator doesn't just cool the coolant. It also cools the tranny fluid. So if it just started overheating and slipping at the same time then the radiator has probably leaked out enough coolant to make it overheat and enough tranny fluid to make it slip. Check for leaks or wet spots where you park. And obviously check both fluid levels.

Sounds like your driveshaft u joints are worn out and need replacement and a bad extension housing seal.

SOUND LIKE TRANSMISSION IS SLIPPING.CHECK THE TRANSMISSION FLUID MAKE SURE ITS NOT LOW.ALSO IF TRANSMISSION FLUID LOOKS DIRTY DARK AND SMELLS BAD REPLACE FLUID AND FILTER.IF FLUID IS GOOD YOU HAVE.TRANSMISSION OIL PUMP AND FORWARD CLUTCH PROBLEMS.

First thing I would try is a fluid change and filter. you didn't say but I'm guessing it is a elect. shift OD right? called an 4E.
Makes me think that with the bubbles in the oil it might be slipping or low on fluid . Do you check it after you start it but not drive it? If not try that.
If it is low on fluid it has to have a leak as it don't use fluid. Check all the lines fron the trans to the radiator for leaks then check the radiator for oil in the coolant.
Hope this helps
Mike

I hate to contradict the prior poster, but I would not see how a blown head gasket could get transmission fluid into the radiator. Motor oil, yes, but transmission fluid, no.

the transmission fluid in your tranny runs out of the transmission and up into the radiator to cool it off.

So if there is transmission fluid in the radiator, I'd look for a leak in the radiator. If it is mixing the two fluids then the leak is probalby internal.

Remember that if the radiator is now 'mixing' water and transmission fluid, there is a possibility that the fluid/water mixture may be going back into the transmission as well