Thought I would share my experience. My DD was leaking a slight bit end of last season from the clutch side and the drive shaft side both. I recently got around to pulling the DD and changing the seals/oil. I found that as talked about before, there would be almost no way to drain all of the oil out of the case without pulling it and breaking it down. I also found that both seals that I replaced had been installed crooked from the factory, were totally worn out, and didn't exactly line up with the sealing portion of the input and output shafts either. The process is pretty simple to do if anyone out there has been wanting to but hasn't done yet, so if your sled is leaking a bit and gettin oil all over your secondary and drippin on the trailer, just get the stuff from BDX. There seal and oil change kits worked great for me and no more leaks!
