that is serious. Now, tell me exactly what you broke..IJ axle shaft, bearings, housing, mountings..there are quite a few parts here. GS Are you out of warrantyIJ If you are close but still out, check with your dealer (if you bought it there) and tell him of your troubles. Deere sometimes will go thirds with the dealer and the customer on some out of warranty items.
This sounds simular to a rumor in my area that someone put some sort of tire,wheel setup on their 9550 sidehilland they were warned by DEERE thatit would break their final drives,1 firstday,n2,2nd day,n3,couple days later.
Not sure what they put on,we run 35.5-32s on our 96 series,read on Deeres website that they have a tread center to where rim bolts on to axle specification for lighter final drives,maybe they didnt get heavy duty ones for their sidehillIJ