I have a 1998 9400, and at 2700 hours the valves piled up and spent 16000 fixing the piece of crap up and deere would not give us a cent.I heard from a customer service rep(different dealership, old minor hockey friend)that there were many problems with these, but do not admit there is(deere) Our 8870 we have prior was twice the tractor, but we thought was not big enough(though with triples would be almost as big as a 9400. lots of electrical problems. Had a great offer on a TJ450, may consider it yet, cheaper on fuel.