The Stovebolt.com Forums Home | Tech Tips | Gallery | FAQ | Events | Features | Search
Help is a click away!

VEHICLE
INFORMATION
KITS


at the

GM Heritage Center
All the details are here.

Searching the Site - a click away
click here to search
New here ??? Where to start?
Click on image for the lowdown. Where do I go around here?
====
Who's Online Now
7 members (Wally / Montana, 49choptop, tesa, Shaffer's1950, klhansen, sron48, 1 invisible), 41 guests, and 1 robot.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums66
Topics128,090
Posts1,056,022
Members48,430
Most Online14,466
Apr 26th, 2026
Step-by-step instructions for pictures in the forums
Brad Allen's photos

AD Chevy Trucks

Pictures galore
Over 6,000 pictures

Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips.

Check them out!

Lots of work on Brad's part ... pure enjoyment (and references) for you!

Big Thanks!

THANKS!

For helping keep this great
old truck web site
on the Internet for

over 30 years!

and not clogged down
with Ads!


Again, thanks!

Previous Thread
Next Thread
Print Thread
#1531555 01/03/2024 8:51 PM
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
Is it possible to buy a speaker that will fit in the radio housing as original?

Last edited by Peggy M; 01/08/2024 5:31 PM.

Mike Barnes
1950 GMC 1-ton pickup
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Yes speaker sizes have been standardized since before the old tube truck radios
A 6x9 is what the radios use in the old trucks
The ford speakers are identical
The radio manufactures don’t make speakers
You buy a speaker and stamp “gm original parts” or fomoco onto it to make it your own lol
However if you want the oem style speaker and you have a broken rotten one they can be rebuilt to perfect original specs to keep it authentic
I have some photos in other posts about some of that kind of work
-s

Last edited by 2ManyTrucks; 01/03/2024 9:36 PM.
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
I have not been able to find a source for new 6x9 speakers that fit those radios. Generally I find that the new ones have a steeper angle on the frame holding the magnet and the magnet has a large diameter. The result is that the speaker interferes with the chassis. I have used a smaller speaker, I think they were 6x8, that were used in later Fords. Some years ago the truck parts vendors were selling 6x9 speakers that fit.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Yeah that’s a good point modern speakers have large magnets that could be a fit issue
Then pick up an old one on eBay or a junk yard and fix it up best you can or ask someone to help you out to rebuild one that fits
The speaker exchange website people usually can source any parts you need even if not listed in their website.
-s

Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
I read your posts of the amazing rebuild on your radio including the speaker. I admire what you did there. I just bought a radio and opened it up. A previous owner had installed a 6x9. The magnet actually touches the chassis and the back structure behind the cone had been cut out in order to clear. Quite a rigged up deal.


Mike Barnes
1950 GMC 1-ton pickup
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
Cutting the speaker frame a little isn't a bad thing if it can be done without causing distortion of the cone or suspension. The two styles of radios that served the trucks from 1947 to 1953 have diferent chassis designs and the clearance challenges with the speaker are slightly different.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
Most of the capacitors have been replaced too. It just might work after I have an antenna and power it up. It’s a 986067 so I need to disassemble it to paint the escutcheon and replace the dial plate with a GMC. That would be a good time to install a different speaker. I wish I had an original. It would be a nice project to rebuild one.


Mike Barnes
1950 GMC 1-ton pickup
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
One of our members had a speaker reconed last year. He found someone who actually still does that. It is sort of a lost art and requires special supplies to do the job.

You can test your radio without an antenna, just by using a piece of hook up wire Just take a length of about six feet, bare about 1/4" and insert it into the center of the antenna jack.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
Found some time to try it today and it works!

Using a wire for the antenna it even brings in more stations than any other radios I have.

I ran jumper wires from the battery in my truck. Even though the truck wasn’t running I got a lot of static. Maybe that is normal.

Will it be necessary to remove the tuner unit before the escutcheon can be removed for paint and a new dial plate?


Mike Barnes
1950 GMC 1-ton pickup
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Unfortunately yes
The tuning assembly must be pulled out from inside the radio housing to get to those dial face parts
But if you are careful it doesn’t not require disconnecting anything soldered im fairly sure but I maybe mistake.
-s

Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
Oh, well that’s no surprise. Thank you.


Mike Barnes
1950 GMC 1-ton pickup
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
I don't believe that you need to pull the radio apart to trmove the bezel. You should be able to see and access the screws holding it in place from the front. The replacement dial has a transfer on the inside of the plastic. It takes the patience to disassemble and reassemble those parts. The escutcheons are the little teardrop peices that go on the front of the dash, To remove them, pull the knobs off.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
I’ve been using the word incorrectly. It looks like the bezel will come off without tuner removal if there are no nuts that would drop off when the screws are removed.


Mike Barnes
1950 GMC 1-ton pickup
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Unless I’m misunderstanding the question
The red plastic part that holds the dial face will not fit through the hole in the chassis
It has wings where the screws hold it into the tuner assembly
You must remove the knobs
Remove the nuts behind the knobs and push the whole assembly out the rear
Then you can access the screws on each side of the dial face plastic

Photos of the screw area and where the housing Infront and no space to pull it out
-s
Attachments
IMG_1327.jpeg (171.14 KB, 97 downloads)
IMG_1328.jpeg (41.9 KB, 100 downloads)

Last edited by 2ManyTrucks; 01/07/2024 8:52 PM.
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
ToomanyTrucks,
is that the slant back model? I have the later model here and definitely you can remove the bezel without opening the case.

The screws that hold the bezel are mounted in tapped holes, no nuts involved.

One thing I would like to mention. The new dial that I have purchased has the thin plastic film on the lense and the end continues over one end. I think there is an identifying mark on the extra. The first time I saw this I thought it was a protective cover. As I proceeded to pull it off I found out that it was the dial!


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Oh yeah if you have the later radio that is not the slant one that dial face may be able to come out
That would be an improvement
But OP said they have the slant back style radio like in my photos so they will have to pull it apart
986067 Model

There are no nuts behind the tiny screws
They thread into the metal behind the dial face plastic
-s

Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
This one is a 986967 with slant back. The chassis has cut outs on either side for the Bezel wing screws. You can also see a large screw head and a small screw head on each end of the bezel. There are also two small screw heads visible on the bottom of the bezel.
Attachments
IMG_1873.png (3.67 MB, 80 downloads)
IMG_1871.png (3.62 MB, 80 downloads)
IMG_1872.png (2.6 MB, 81 downloads)
IMG_1870.png (3.48 MB, 81 downloads)


Mike Barnes
1950 GMC 1-ton pickup
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
The two large screws are what hold the bezel in place. The tiny screws hold the dial components together. Sometimes some of the tiny screws hang up on the metal structure inside. I think it is the side ones that I am thinking about. I have distorted the bezel slightly to free it or even removed them to free the bezel.

With regards to the static, if the station signals are weak, the radio gain automatically cranks up and you then hear the background noise as static. With strong signals there is a marked difference. Of course there are other things that can create static.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
Thanks guys. I removed all eight visible screws and removed the bezel. I can see what the tiny screws were for now. If the light bulb is good I shouldn’t have to remove the tuner.
Attachments
IMG_1878.jpeg (246.73 KB, 66 downloads)
IMG_1879.jpeg (277.65 KB, 69 downloads)


Mike Barnes
1950 GMC 1-ton pickup
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
They work fine but these are not original knobs are they?

The tone control and dummy flippers are missing so I’ll have to buy some of those.

I believe there should be two spacers between the bottom of the radio and the dash. Do either of you have one of those and tell me what the length is?
Attachments
IMG_1881.png (3.58 MB, 60 downloads)
IMG_1882.jpeg (375.22 KB, 59 downloads)


Mike Barnes
1950 GMC 1-ton pickup
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Well that’s new to me
Today I learned not all first gen radios are identical
The notch on the front to allow the dial face removal is definitely not there on the few units I have like in my photos
Neat

The bottom spacers for mounting can be purchased as reproductions, but those are the easy ones to make
I’m not near them now to measure but if I recall they are about 1/2 thick, you could start at 1/2 and add washers until you like the fit
Then make a new one that is the length you desire

https://www.chevsofthe40s.com/detai...nt_Of_Radio_To_Dash_Upper_and_Lower.html

You can also buy reproduction knobs
-s

Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
For the spacers I just use a couple of nuts. They have a larger inside diameter and a thickness close to 1/2". This is not something that is precise.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
I am going to guess that there is a way of replacing the bulb without removing the tuner. I think you will find that the socket is on some kind of slide on clip.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
Those definitely are not the correct knobs. I have found that the reproduction knobs sometimes have faulty or missing clips inside. I have made new ones from the spring steel of carburetor clips. The smaller spacers go between the radio and the dash and the teardrops goon the outside.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
Thanks again Gentlemen. I also recall 2ManyTrucks 986067 had set screws for the buttons. This one does not.


Mike Barnes
1950 GMC 1-ton pickup
Joined: Aug 2018
Posts: 1,004
2
'Bolter
'Bolter
2 Offline
Joined: Aug 2018
Posts: 1,004
Original set screw knobs in Decent condition are super rare
I have like 4-5 only and it took me about 12 years to collect that many without shelling out eBay prices for a whole radio just for knobs

I have a friend who made 3D printed replacements using originals as an example
He made them accept a brass insert that contains the set screw and the tone knob had a laser cut stainless insert to grab the control shaft
I regret only having a few printed, next time I’ll pay him to make so so many for all of us bolters.
-s

Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
That is an example of the amazing creations that can be done with modern technology. I saw an article where they made knobs for the dash of a very rare 50s car.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Joined: Mar 2005
Posts: 627
5
'Bolter
'Bolter
5 Offline
Joined: Mar 2005
Posts: 627
It is amazing. It is even possible to print a house these days.


Mike Barnes
1950 GMC 1-ton pickup
Joined: Nov 2012
Posts: 185
K
'Bolter
'Bolter
K Offline
Joined: Nov 2012
Posts: 185
The original speaker for my 50 - 53 Chevy Truck radio was torn and dry rotted, I purchased an aftermarket 6x9 speaker off Ebay, speaker was the right size but was too thick. The radio cabinet lid would not close no matter what. I then decided to look online for a vender that could rebuild and recone my original. Found a guy on Ebay that provides this service, the sellers username is utrecone. Contact him, he did a fantastic job and his fee was very reasonable. He charged me approx 65.00 plus shipping I believe. That was about a year ago.

Last edited by kahoys; 01/26/2024 2:45 AM.

Moderated by  truckernix 

Link Copied to Clipboard
Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 8.0.0