I have a MF 4355 4wd with a loader that is going through front tyres ridiculously quickly. I know loader tractors tend to, but this is excessive. I have played around with the toe in / out etc, but have noticed that the 4 wheel braking seems to lock on, to the point where it can stall the tractor in a high gear. Any ideas on how I could resolve it or how I could disable the 4 wheel braking?