We had lots of problems with ours last fall. They haven't done an update yet New Holland says it will come out in Aug. A little to close to harvest for my taste.
We ran a CR970 for 400 hrs on duals with out a problem. This is probably due to the dealer backing off on the bolt tensions on our machine after he had heard of others having problems!
there is an update kit which provides reinforced plates for the dual studs and stronger wheel studs to replace the old ones. Also there are nrew torque specifications for these studs. You really have to watch them close there are three different tourques for the different strengths of wheel studs.