About a year ago Mercury authorized my dealer to install a new outdrive on my boat because of corrosion issues. So this week I had the dealer pull the drive for it's first service and the drive bellow was full of gear oil. ( I have put oil in the reservoir a couple of times in the last year but just chalked that up to "normal" for a Bravo 3 based on my prior experience). Pressure testing the drive didn't indicate a leak but just the same Mercury authorized the installation of a new upper Yoke seal under warranty . It just seems strange to me that the seal would fail so quickly. That is why I was curious how many of you folks may have experienced the same seal failure.