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I'll go thru my pics. or take new ones. I've got a truck I stripped for parts that had factory door speakers. I took the factory am/fm stereo out and all the factory wiring to put into my other trucks and took pictures of the holes with dimensions and location but I'll have to go thru all my stuff and look them up. Later, Shortbox4x4
The factory am/fm stereo is what I'm using. So whatever that put out. The speakers that will be in the doors are Alpine. They we're already in my '77 shortbox when I got it.
The truck I stripped was a '77 F350 supercab/camperspecial. Had a 460 in it and was nicely optioned and everything worked in it.
You should see a small dimple in the front channel of the door and a corresponding dimple on the A pillar (that's how ford center their bits when they did it factory). Right where it begins to angle up for the window. that is where the factory speaker wire popped through. Mine did not have factory holes, but it is a 78 and the dimples were still good to go. Used a step drill, 2 grommets, and 1/4" split loom.
Slight hijack but related subject matter...........
Are these speaker wire holes drill-able with the fenders and doors in place or does one or the other need to be off the truck?
No where near my truck to be able to check it out myself.
Thanks
Tbruz
Yes, you can drill both door and pillar holes without having to dismount anything - used to do that at a Ford dealership I worked at. You will be drilling at an angle but your main worry is inadvertently moving the drill chuck into contact someplace and nicking paint. Best to deburr the holes if possible, or use a rubber grommet.
I think the original speaker size is 5 1/2"? Depending on the shape of the metal speaker shell, some 6" speakers seem to ft OK. (The most fun when I had my 61 was popping off the lower door panels and using an air chisel to cut 6x9" holes in them...in the '70s that was some jaw-dropping bass in a truck cab.)
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