I thought the wheels were off set centres, you move them side to side to widen the stance?
A shop crane is handy yet akward for handling big wheels.
Even moving wheels out 1” will make it feel more stable.
On the Kubotas they are on some models of rims/tires. I have R4 I think, rims are not "split" like other Kubota. Salesman didn't realize that when he sold me $600 worth of chains, wife was none too happy when I told her it would take another $400 for the spacers and stud kit.