There are a lot of M10 bolts between the gearbox and the 4x4 drop box that stretch. If you notice oil drop on the floor over night, you must change these bolts ( not tighten them up). It didn’t get done on this one.
It was on a 6 furrow DP 7 plough and because the bolts weren’t tight it started to bend on that flanged joint and twist the internal shafts. Then as the plough was lifted, it stalled the engine. Goodbye to a good old tractor unfortunately.
Would have cost ab £6 to repair 15 years ago.
Learn something new every day. I've always wanted a TW I hope if I get one that doesn't happen... But at least now I know what to look for.