When replacing the bearings, the mechanic recommended to align the rear end assembly. According to him, the tires were inclined inwards on the upper part. Shouldn't they be like this or do they have to be aligned? I was told it was a normal position and that it allows a better stability. In case it has something to do, I replaced the torsion bars. Could you please help me? I would like to know which measurements need to be made as well. Thanks.