Hi all, I started taking my '85 R80G/S apart this weekend. I might regret it later this spring when everyone else is outthere(!), but I'm curious about how it works and I want to check the condition of as much as possible, replace if necessary. One thing I knew was not in a good condition was the rear bevel drive housing (I think it's called). Oil is leaking from the driveshaft filler plug because the thread is gone, so I have to cut a new thread. That was the obvious problem. When I opened it, I saw this. You're looking into the front of the rear bevel drive housing. The broken thingy should be part no. 4 here. Is this fix as easy as it looks? Replace part no. 4 and bolt it all back on. My Haynes manual says it's difficult to disassemble the housing but not why. Would you replace all the small parts while you're at it? Any advice appreciated! The bike has run about 110 Mm but the speedo is about +20 off, the odo shows more than it should.