I welded the diff in my tractor today. Made a big difference. But was messy i should have wore gloves! It would have been alot easier if i pulled the wheels off but i was too lazy to remove the weights. So I had to fight with the heavy wheels and axles flopping everywhere while i messed about getting them aligned and clamped in the housing to weld them straight. Anyway Im happy. Plus i got the brake adjusted up so i have a little brakes now.