Novusuhu

Hey everyone

Finally I found an antenna for my 1977 C3.
It is a C2 style antenna (telecopic). I tried if hole size was good, and it fitted perfect. I kind of like the telecopic feature.

I have two problems, because there wasn't an antenna on my vette when I bought it:

1. I don't have a ground plate (which I need to fill the space so I can tighten the bolt of the antenna).
2. I don't have ground strap.

When I have to buy these two parts in Belgium it would cost me around €100. That I find too much.
Do you guys know what the dimensions of the plate are? So I can make it myself (It doesn't seem that hard to DIY).

I will also make a ground strap myself. Is there something to bear in mind for the strap?

Alan 71

Hi N,
The plate is tapered.
8" at one end and 5" at the other.
It's 13" long.

The strap is 14" long and about 3/8" wide.
Regards,
Alan

Novusuhu

Thank you very much!!!

Greg

Alan,
Your photo library never ceases to amaze me.

72 Project

Please, please, please, do the coffee table book.

dmaxx3500

pics are great,NCRS should hire alan to do a real judging book

Alan 71

Hi dm,
The new 68-69 and 70-72 Technical Information Manual and Judging Guides have grown to more than 250 pages each, and each contain more than 500 color photos.
Regards,
Alan

Novusuhu

Do you know where the big hole in the plate is approximately?

zwede

Doesn't matter, just make a plate and tape it under the car and drill the hole in the plate using the hole in the quarter panel as a guide. No need for precision.

As you can see the factory plate has 3 holes with rubber snubbers in it. These are to avoid rattles. You should do something similar.

Alan 71

Hi N,
The hole for the antenna base is 4 3/4" from the forward (wide) end of the plate.
The plate is positioned by pushing the side of the plate tight againts the crease between the deck and fender.
Regards,
Alan