Hi my disco 300 tdi 97 plate has started wandering. If i point it straight it wanders to the left then back to the right and so on. I replace 2 swivel bearings in the drivers side which one had completely collapsed, also a wheel bearing and new discs its been fine for a month apart from brake pad rattle (doh). Could the steering box be worn, everything else seems tight and ok,,,great site by the way and the Buster chap is a top boy