My rear end has whined through every gear ever since I got it... I noticed it when I test drove it but I grew into ignoring it with the windows down in the summer... Now that i drive with the windows up, it is REALLY annoying. Inside the car it's louder then my flowmaster and my car's pretty loud. I'm gonna check if it needs lubing, but is there anything else i might need to check for when I check the lube? Not to mention it's the stock 3.08 gears i believe (manual)