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Old 05-02-2012, 10:00 PM   #26
old man jimmy
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Re: Blazer Speaker mounting problems

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Originally Posted by 1949gmc View Post
I was hoping that old man jimmy would chime in here.... I knew he would be the guy to ask!
Thanks.. they came mounted in the middle hanging under the dash. Problem was, at highway speeds, their were so much wind noise and rattles you couldn't hear it very well.
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Old 05-03-2012, 06:22 AM   #27
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Re: Blazer Speaker mounting problems

1949 that is what I have exactly. Old school your funny
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Old 07-28-2013, 01:16 PM   #28
DeadheadNM
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Re: Blazer Speaker mounting problems

Now I'm curious. The under dash speaker brackets have coarse threads that match those on the screws that holder a heater to the dash. Easy install if you don't have a factory AC truck. But the screws that secure the AC controller to the dash are finely threaded and don't match the bracket. So, did GM:
1) use separate brackets for AC trucks
2) Drill out the brackets threads
3) Mount the speaker in a slightly different fashion on AC trucks and/or use an additional bracket
4) Do something else and/or I'm just crazy for caring

Can anyone with a factory AC/under dash speaker equipped K5 put this to rest?

Turns out my Blazer has a dash mounted speaker but I may add the under dash speaker I have for the look.

Thanks, Pete
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Old 07-28-2013, 06:48 PM   #29
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Re: Blazer Speaker mounting problems

Pete I brought something back to the top for you Stock speaker
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Old 12-18-2018, 09:34 PM   #30
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Re: Blazer Speaker mounting problems

I was just working on installing a speaker in my restoration. I started out trying to install the nut style bracket with not much success. I was trying to get it under the ac controls but it looks like it would only work to install it offset by the gas pedal.
I decided to check my stock and found another bracket speaker setup with a different shape and the nuts omitted. I tried it and it fits perfect under the ac but it needs to be mounted on the outer surface of the dash
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Old 12-18-2018, 09:36 PM   #31
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Re: Blazer Speaker mounting problems

Another note for the super purists. The back side of the bracket isnít painted, just zinc plated.
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Old 12-19-2018, 09:16 PM   #32
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Re: Blazer Speaker mounting problems

Installed
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Old 12-19-2018, 09:43 PM   #33
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Re: Blazer Speaker mounting problems

Quote:
Originally Posted by DeadheadNM View Post
Now I'm curious. The under dash speaker brackets have coarse threads that match those on the screws that holder a heater to the dash. Easy install if you don't have a factory AC truck. But the screws that secure the AC controller to the dash are finely threaded and don't match the bracket. So, did GM:
1) use separate brackets for AC trucks
2) Drill out the brackets threads
3) Mount the speaker in a slightly different fashion on AC trucks and/or use an additional bracket
4) Do something else and/or I'm just crazy for caring

Can anyone with a factory AC/under dash speaker equipped K5 put this to rest?

Turns out my Blazer has a dash mounted speaker but I may add the under dash speaker I have for the look.

Thanks, Pete
I believe the bracket was originally offset towards the steering wheel. My 71 was an AC blazer and I centered it under the heat/AC controls as it looked much better to mr. Ground off he nuts and drilled the bracket and bent it some to put it more under the dash.
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Old 12-19-2018, 09:44 PM   #34
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Re: Blazer Speaker mounting problems

This is an old thread that I responded to some years ago. I have to start looking at the dates
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Cars/Trucks I have restored and owned:
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Old 12-21-2018, 08:04 PM   #35
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Re: Blazer Speaker mounting problems

Good info thanks for posting.
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