Originally Posted by
GraphiteGhost

Cars driven on the right side of the road have their lights aimed to the right and down so as to not blind oncoming traffic. Those who drive on the other side have the opposite, for the same reason. I am not sure if there is a difference in the part numbers, and if so (if) it might just be how they are adjusted from the supplier. They (the lamp holders in the assemblies) do 'swing' with adjustments, I have never tried to 'realign' them for driving on the opposite side of the road. So, those who have a parts listing, are the RHD/LHD assemblies different in part numbers, and if so, can they be 're-aimed' if moved/registered in a country opposite its design? Now I understand why many military folks deployed chose to just buy a clunker when overseas for a year.

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The headlight assemblies ARE different for LHD & RHD cars, see attached.