My car has noise from front differential. What is front diff?

 

What kind of noise is it making, whats the symptoms? How do you know your front diff is noisy? Your question is very vague. Please provide more information

If you just want to know what a front diff does, to put it simply It basically just transfers power from your transmission to your front wheels. If you want more information on how it works, its on wikipedia

Here
http://en.wikipedia.org/wiki/Differe...ical_device%29