Hello guys, still learning my way around the site. I will keep going til i get it, I do have a question although i dont know if this is the right place. I have a whine in the front of my truck, the faster i go the higher the pitch gets. Someone told me that it could be the transfer case. I checked the fluid level and it is full, as well as the front diff. I did notice that there is a leak around the end of the front drive line where it meets with the diff. I know some basic things on how to fix or change things. But any help on what i should check first would be very helpful.