My passenger side Mirror is all busted, just the glass not the casing. Where can I find a OEM replacement for it? All the parts stores have something like it but there not the same. Its the type of mirror found of duallys.
If you are meaning the genuine stainless mirrors that I can almost see in the picture in your avatar, I pick them up at swap-meets all the time.
I have used GM heads on my Ford trucks and vice-versa; the shaft diameters are the same, BUT the Ford shaft is somewhat taller than a GM shaft.
The Ford head is smooth-backed; the GM head has reinforcing "ridges".
The glass is the same size/shape.
GM used the same shaft and head on a close-to-the-cab set of brackets also, commonly seen on 4x4 SRW trucks of the late 70s.
You can simply swap on a complete GM head and shaft; but, like I already stated, the GM shaft is shorter, making the truck look crooked if both sides are not done.
You can put a GM head on the taller Ford shaft,
providing the Ford glass is broken out; reason being, the GM head will simply slide off the shaft when the four clamp-screws are loosened; whereas, the Ford shaft has a retainer made onto the shaft that will not allow the head to come completely off, UNLESS the glass is missing and you can then knock off that retainer and then remove the head.
As you have probably already discovered, the replacement heads available at auto-stores, J.C.Whitney, and the like, have the shaft riveted to the back-side of the head and most like that are rust-prone chrome, instead of stainless; they just look sort of cheap.
More than twenty years ago, twice in one week, I got the driver mirror knocked into a million pieces, once by an overly long truck-flat
swinging over into my lane while he was turning, the other when me and a semi met on a tight bridge and locked mirrors.
Over the years, I have had various other gate-post encounters, BB-guns, big rocks, wild horses, etc.
Due to the near impossibleness of finding replacements, I have developed the habit of grabbing everyone priced within reason that I see, cleaning them up, and hanging them in the rafters.
This got me to thinking, I need to put at least one good spare head in the truck, in the event I lose a mirror a long way from home.