GERALD´S CADILLACS


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1978 CADILLAC ELDORADO CB ANTENNA

I just recently found out that the power antenna in my 78 Eldorado is not the factory correct one anymore.
My Eldo comes with a radio with the CB option, so it should have the according tri-band antenna for the 78 Eldorado.
One of the previous owners had replaced the original antenna with a replacement antenna, which worked, but it had very poor CB reception and of course it does not look correctly.

What I have found out is that #22010515 was the original part number for the antenna.
This antenna was also used in the 1977 to 1982 Corvette and is extremely rare...
Replacement antennas had the part number #22010661 on the sticker with a date code below.
When these replacement antennas were no longer available, it seems they switched to a different antenna design as a replacement #12355706 (which I had in my car). This last design came with a special antenna splitter. I do not know if this splitter is essential or of it would also work with the original splitter which is still in my car.

It took me quite a while to find the correct antenna for my car as it seems to be made out of "unobtainium". I did search the net for days and somebody sent me an incorrect antenna which was for a Buick… Suddenly during my daily search, a correct, working antenna showed up on ebay, and I immediately hit the "Buy it now" button. It was not exactly cheap, but I was happy to have finally found it. When it arrived I cleaned it up properly.

I then found out that I would also need the correct antenna bezel on the fender. Various sellers sent me incorrect ones which they claimed would be the correct ones, and eventually I found a good used one from the seller of my antenna and a NOS one from a parts vendor (it has not arrived yet as once again USPS sent it to Australia instead of Austria - don't ask what this little bezel has cost… :-( )

I then also had to replace the thinner replacement antenna lead with an original one going from the antenna splitter behind the glove box to the antenna. I got this one from Arizona Vintage Parts.
I can say now that my car is 100% correct again. Unfortunately this project was an extremely expensive project and I will now try to sell all the not needed parts on ebay. They will fit Eldorados with non CB antennas and the other wrong CB antenna I got will be for Buicks, but could also be installed into the 78 Cadillacs, as the mast itself is exactly the same as on the original antenna and from the outside it would look completely stock. But purist as I am, I just needed the 100% correct antenna ;-)

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The later style replacement CB antenna which I wanted to replace with an original one.
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The later replacement style fender bezel looks completely different from the original one.
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On the left you can see the official later style replacement CB antenna which looks very different. It does not have a load coil and no additional stub antenna. This is part #12355706. On the right you can see the original 1978 CB power antenna with the load coil on the mast and two antenna leads and the additional FM stub antenna. This antenna is nearly impossible to find…
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Thats the CB - load coil, which can be adjusted. The plastic unfortunately got very brittle over the years on all antennas of this vintage.
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This are the instructions which came with the car, if you ordered the very expensive CB option…
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The antenna trim bezels for the 1978 Cadillacs. On the left the one for the regular antenna - on the right the one for the CB antenna with a larger diameter in the plastic part. The chrome ring is exactly the same for both. These two are used ones I found.
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I cant believe that I was lucky enough to find this super rare antenna bezel as a NOS part - still wrapped in its original plastic bag. Not exactly a bargain, but its 100% perfect.
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The new, correct antenna installed into the car.
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This is the incorrect CB antenna I got. It could be installed into a 78 Eldorado without any problem and would look 100% correct from the outside. It works perfectly smooth, and the chrome mast is in excellent condition. The load coil and the FM stub antenna are all there. The previous owner of this antenna removed it from a 78 Eldorado, but it would normally be correct for Buicks. If you are not such a purist as I am, you can buy it from me for what I paid for it. ($250 + shipping) It comes with all the necessary hardware to install it.

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REPAIRING THE SEAT BACK LOCKS OF THE 1974 (AGAIN) AND NEW POWER ANTENNA INSTALLED

Today I finally found the time to permanently fix the power seat back locks in the 74 Coupe DeVille. The lock on the passenger side always had a little contact problem since I got the car and only worked sometimes… A guy who wanted to help me and who boasted that he could repair everything, tried to repair it last fall but after his “fix“ it only worked for a day and then the locking system was completely dead, after he had worked on it for hours the day before… Now I did what I should have done before - I fixed it all by myself again…

I found a way to remove the seat back lock mechanism without disassembling the whole front seat and replaced the mechanism with one which I got from my favorite Cadillac Parts vendor - Arizona Vintage Parts. As always they delivered a perfect part and it only took me half an hour to remove the old part and install the new one.

The function of this lock is that it latches the seat backs in place when the doors are closed. The lock disengages and unlatches when the door is opened, so that rear passengers can simply fold the seat backs away when entering or leaving the car, without having to push a button.You can hear this "Automatic Seat Back Release" working when you open or close each door.

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After removing the plastic covers around the seats - it will look like this. The seat back lock mechanism is hiding inside under the seat back.edge
You have to remove the lower 3 hog rings to get access to the two mounting screws.
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The new mechanism I got from AVP on the left and the old original one which does no longer work

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After installing the new part all you need to do is to install the hog rings again and install the seat cover surround moldings. Here I´m using a hog ring plier - but you can use some simple other pliers as well.


DEFECTIVE POWER ANTENNA

I also had to replace the defective power antenna of the 74. The original one had a burnt motor and also the gears and the whole mechanisms were broken. I can´t imagine how this could have happened. When the antenna died it also burnt the fuse. After inspecting the power antenna I decided that it was not rebuildable and ordered a rebuilt one from Arizona Vintage Parts as well.
The antenna can be removed very easily on the 74 - so much easier than on my 60s cars. I was able to switch it out within 10 minutes. It works perfectly now.
It´s very important to me that all things on a Cadillac do work like they should.

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This is how the disassembled original power antenna looked like when taken apart - you can clearly see that the motor was burnt.
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This is how the disassembled original power antenna looked like when taken apart - you can clearly see that the motor was burnt. Also the mechanism itself was damaged.
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The 74 has a working power antenna again.

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