Get the newer style arms from your dealer. They will absolutely replace them at no charge. I, like many others have been through this. There are the proper part numbers and tech bulletin references posted by others from TBN.
My dealer was also very resistant at first - until I brought in the references from TBN. They still said no, but boom - when I picked up the machine after I got a snow blower installed it had the new arms on.
I too have the I-Match, tried washers, resetting the wheels etc, etc, etc. Even if you can "rig" something up - your machine will function so much better with the redesigned arms - you owe it to the tractor gods to do it.
My dealer was also very resistant at first - until I brought in the references from TBN. They still said no, but boom - when I picked up the machine after I got a snow blower installed it had the new arms on.
I too have the I-Match, tried washers, resetting the wheels etc, etc, etc. Even if you can "rig" something up - your machine will function so much better with the redesigned arms - you owe it to the tractor gods to do it.