Thanks Steve.Hi Doug. I'll take a look tomorrow and let you know what I have.
Hello again Doug.
My dash is out of my 64 Vert while it's undergoing restoration. I looked at the dash this afternoon and can tell you there are 4 threaded studs in a rectangular pattern that the dash speaker attaches to. The center to center measurement on those studs is approx. 8 1/2" one direction and 3 1/4" the other. The junk speaker that I have in there now was left by the previous owner and it's tiny. So tiny that it's only being held in place by one of those studs.
I also checked my FSM [Factory Service Manual] for you and I learned something that I didn't know before. From the factory, there was a speaker mounting plate that the speaker attaches to. The FSM advises that to either remove or install the dash speaker, the radio should be removed first. Then the speaker and the mounting plate are removed [or installed] as an assembly, using a 'flexible drive socket wrench to remove the [four] mounting nuts".
Take a look at this site....http://www.turnswitch.com/speakers.htm and scroll down about midway on their page and you'll see 4 x 10" Slimline Oval speakers. These folks believe that this was the most common OEM speaker in our cars, but if you look at the mounting dimensions for these speakers the length is different than what my studs measure. My guess is that the mounting plate makes up this difference.
This info doesn't really agree with the mounting bolts on the '64 dash??I believe it is an oddball 7" round speaker. I re-installed mine but do not use it. Here's a link for a replacement.
https://www.herbsparts.com/proddetail.asp?prod=SM06(3)
Actually I ended up fastening a 6.5" into the 7" bracket for a temporary solution. Here's some pics.
https://www.forbbodiesonly.com/moparforum/threads/can-of-rusty-worms.104526/page-32
This link might be the correct one for B bodies but I think it is the same speaker.
https://www.herbsparts.com/proddetail.asp?prod=SM06(4)
Shall do.If you have the original speaker still in the car, please post a photo of it when you do get around to pulling it. Thanks Doug!
I've got one in front of me that I just pulled out of my 1964 440. The speaker itself is 7" round, but it sits in a mounting plate. Mine was trashed so I pulled the speaker out of the plate, trimmed some wood to sit inside the plate, and attached tweeters in it. I plan to add other speakers elsewhere in the car. At one point I think someone was making a 2 in one stereo speaker that went into that dash space, but i can't remember who...
I'd send this one to you if you want it, but the cone is toast. I'm sure someone could replace the cone if you wanted an original speaker?
Part information on the back of this speaker is:
2427589
50D42224A01
MOPAR
433343
I'll hold onto it. If you decide you want it just send me a pm. I've got the factory radio sitting on a shelf also. A previous owner chopped the power wires off of it.