My older Ford 1750 had slightly offset front rims which I flipped outwards.
The rear rims were a two-part rim.  So, I flipped all the pieces so it was as far out as it would go.
It widened the tractor a bit, and feels more comfortable on the hill.  
The front axle has a free pivot, so all the stability comes from the rear wheels.  For hauling stuff with the bucket, I've added stops for the front axle pivot.  It helps a lot.  But, it impacts traction and is inconvenient when not hauling or suspending heavy loads with the bucket.