Shakey mirror fix with a bracket and bottom post fix (1 Viewer)

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I just took apart an OEM that I replaced quite a few years back.
Mirror mounting system seems to be all plastic parts except for the screws.
I see three potential failure points and wondering which one is most common.

#1 is the ears (hooks) attached to the plastic mounting bracket. (Mine was ok here)
#2 is the bottom pivot screw that secures the mirror assembly. (threaded plastic receptor cracked)
#3 is the holes (eyes) which drape over the ears and support the weight. (I had one side fail)

I think the weight bearing holes on the motor segment (#3) would be most likely to fail.
Mirror vibration and movement will snap one or both of these cut out holes.
At that point perhaps the bottom screw will crack its threads.

The part shown in Picture 1 is painted cast metal, not plastic.

#1 I have not heard or seen these metal hooks breaking, and if they did then the bracket would still work.

#2 This is where the screw goes into from the bottom, and these do split. This is also not a pivot point, the motors do all the pivoting/rotating of the mirror. I am working on a little brace to hold it together, maybe I can also make one if the post breaks off. All it needs to do is hole the motor assembly from rotating out. This makes it so we can assemble the mirror with out seeing screws. With the original mounting this part is in tension and why the "ears" break and the post can split.

#3 Is the issue the bracket I made is taking the work place of. These "ears" are thin and need to be with the original design, so the little hooks in the first image can keep the motor assembly from falling out.



I made a little video of the motor mount added and it should not move at all when mounted, this is why the bottom screw puts the assembly in tension.
 
I just took apart an OEM that I replaced quite a few years back.
Mirror mounting system seems to be all plastic parts except for the screws.
I see three potential failure points and wondering which one is most common.

#1 is the ears (hooks) attached to the plastic mounting bracket. (Mine was ok here)
#2 is the bottom pivot screw that secures the mirror assembly. (threaded plastic receptor cracked)
#3 is the holes (eyes) which drape over the ears and support the weight. (I had one side fail)

I think the weight bearing holes on the motor segment (#3) would be most likely to fail.
Mirror vibration and movement will snap one or both of these cut out holes.
At that point perhaps the bottom screw will crack its threads.

Still hoping for the definitive fix. Would be elegant. I may order a set of extra mirrors from Mr T just in case :)

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#3 is where I've seen failures.
 
Bottom post support

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My passenger mirror began to shimmy and shake a few weeks ago. And last weekend I tightened the screw that you remove to remove the mirror. The shakes are gone.

Had no idea that screw held the whole mirror assy in place. How good is that?!
 
I received mine and cant get the mirror under the bracket. Any truck to installing it?
 
I received mine and cant get the mirror under the bracket. Any truck to installing it?
I did this last night. The little Ears on the plastic part that stays in the mirror housing, now that the top of the part with the mirror attached has to slide under Outsane's bracket, it can't come over the top and rest down on the little Ears, that's why you slot the tabs, either broken or still have a hole in them. Look back in this thread where he shows the slotted tab modification picture. Then with them slotted you can slide the mirror part up under the bracket. It confused me for about 10 minutes (because you can't see back there as you slide the mirror in). But then I realized, slotted my unbroken tab side, and it slide right in.

Have not test driven it yet. I did notice the mirror part can be rotationally moved a little bit with your fingers. Not sure if that is negative, positive or nothing.
 
One test ride and no more shaky shaky. When I first used the electric motor adjustment the mirror "popped" down and then it seemed to adjust fine. Will report if there are negative happenings. So far only positive. I only ordered the driver side, so have three more mirrors to fix if more test riding shows it's good. (2 80's, all shaky).
 
How does the bottom bracket secure? I think one or both of my bottom screws is pretty messed up. Zip tie method has been working ok for years, but this does look much more solid than that.
 
Its a much better fix then the Zip tie method, but if its working well then I say run it. If its only working OK try the bracket.

The Bottom screw reinforcement is held in place by a couple of pieces of metal supports on the sides and a support on the mirror. It fills a gap at the bottom and held in place by the mirror motor assembly and the mount. Hope that helps.

I'll try and get some pictures out. I have included the reinforcement with the bracket from now on, might as well fix it all in one shot and not have to go back in for a long time.
 

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