This conversion apply to Rover 25, 400/45, MG ZR and ZS.
All these models have same mirror for RHD cars as well for LHD cars. The point is in the fact that you can adjust the mirror to suite RHD car or LHD car.
This thread O/S Door Mirror...... Cannot adjust outward enough.
pointed me into direction of creation this How to guide.
New mirror comes in the box adjusted for RHD car. If you need the mirror for LHD car you need to make re-adjustment. With every new mirror plastic adjusting tool is delivered. Looks like plastic spanner, but this is not a spanner, it is prising tool. If you do lot have this tool as you lost it, or you never had it, you can do the same thing with two flat screwdrivers, but need to be careful when doing the prise.
In following pictures I am showing how new mirrors, tool, instructions how to do adjustment and position on the mirror where you need to do it.
New mirror with the tool:
Here are the instructions how to make adjustment:
Here are the pictures where you need to put tool in order to make the adjustment:
As requested here are pictures of tool in front of graph paper. Thickness of the tool itself is 3 mm.