sounds like I'll have to get later bulb holders too...
I thought you already had the later reflectors ??? Oh forgot to mention the reflectors have to fit with the matching headlight rims and the adjusting screw are located in different places.
Also the off set section that goes between the reflector and the rim is different..... so theres not much you can use from the real early headlights... you really need to get the whole lot.
At least the glass lens will fit or inter change. But the later prizimatic ones are better for directing the light spread or pattern.
How do i know Ive been through all of this several times before.