I have a 2003 auto with 285000 miles. I have noticed a light oil on the dogbone when I change the oil. I assume this is coming from the final drive. Not a lot but just wondering why it would be leaking. The Bentley says to check level with the drive gear after removing the speedometer. I am not sure where all of this is located. Does any one have pictures. I searched and found someone with the same problem but no final solution. Please inform me if you know of this problem. Thanks