have expirience this same problem,brought our unit to the casa and they found out that the fuel filter has some clogged in it,(due to the quality of diesel fuels being used),i could not believe it though coz i also thought it was from the wheel alignment,.,.,'til the casa explained that its because the engine is lacking from fuel supply due to the clogged in the fuel filter, and is sucking more air than fuel,kaya nagkakaron ng vibration sa high speeds like 120kph pataas.,.,and mapifeel natin ito sa manibela kasi medyo pigil na ang sf natin sa high speeds,.,.,.after our fuel filter has been changed ok na ulit siya wala na vibration and smooth driving na ulit mas mabilis na tumaas ang speed,even exceeding 160kph no vibration sa steering wheel at all.,.,.,
hope this helps,.,.,.I'm back after long time hehehe.,.,
