Buzz in the Plymouth Voyager transmission 1996

My 1996 4 -cylinder model 1996 model (Stratus motor) has a buzzing when accelerating. I have gone to several talling and none gives me a logical answer and I fear that they deceive me to get money.

They did the service to the box and the problem seems to me that it increased or the failure becomes increasingly evident. The mechanic told me that there were no metal or plastic residues in the box and that it could be the turbine or the planetarians. The buzz is metallic and I think that it is due to a differential bulteria.
I will appreciate that they can guide me and have a more accurate idea when going with the mechanic and they will not see me the silly face for my ignorance.
Thanks in advance.

Hello, I am of recent admission and I will give you my opinion: if the buzzing and falls of intensity when accelerating and decelerating but it does not present it being detained you are right are the outlets to the arrows in the differential considering that the transmission is not skipping or making wrong changes that could take us to the brake barks of the drums, the turbines are very rare that they do They work or the car has no traction, it can be diagnosed with an oil pressure test in any way the transmission must be removed from the truck and disarm, before that it checks that it is not going to be a wheel bulteria

I appreciate your opinion and the buzz is as described: it decreases to decelerate. They already reviewed the wheels of the wheels and there are no problems.
Receive a hug and thank you again for having bother you to answer me. So then take it to the workshop I will inform the results.