Father in law ran a jack off his disk through his 2388 in the fall of 2007. Had to put everything in new from front to back. New feeder house drum and chain, new cone with all new hardware on it, new rotor (put AFX in), new chopper rotor, all the stationary knives, and both spreaders. Wasn't a good year for him. Rotor gearbox went out before all this happened. I think he put some new sieves in too from the jack. Had a brand new 2388(internally) after all this happened. To top this all off, when he went to get it out for 2008 harvest, it wouldn't start because the rats had chewed the main wiring harness (the great big one) in the cab in two. What a mess.