I’d say you’re trying to overwork yours.you must not work your tractor hard enough, beet juice, wheel weights, and rear ballast here. sometimes I still find myself on 3 or 2 wheels!!
I’d never try to move a house with a wheelbarrow. If your tractor is too small for the job...get a bigger tractor. You’d be a lot less likely to hurt yourself or your equipment if you don’t overload it.