video basically covered everything I've done. I've tried different different tires, I even swapped out the rear R4's that came on it at delivery for a different set. I've come to conclusion that no 2 tires are exactly the same, as ones I have now(R14T & turf) they are not equal circumference. I even tried the taller one on right side and it made no difference. The tractor was there in Feb 2022 for the issue also, but I wasn't home when they dropped it back off along with the box blade/snow pusher/ and pallet forks. No service order was dropped off either. I did email corporate. "Customer service representative" has replied back to me both times. When I talked to person at dealer I deal with, said he got hold of service at corporate and is waiting to hear back on how they want to proceed. I'll be calling a couple times a week....