You can purchase those tabs that the headlight rim is screwd to....I think. I'm almost sure I have a new I bought somewhere out in the shop.
Big Tee, there are some springs on the back of the headlight rim and the one at the top of the headlight rim fits down into a slot on the top of the headlight bucket........ I'm sure you know this but just in case you didn't. Good luck.

Here you go. Bottom of the page. $4.50 each

http://www.oldchevytrucks.com/cart/index.asp?cat2=9929&path=1947+%2D+Early+1955+Truck+Parts%2FLighting%2FHeadlights

Last edited by Achipmunk; 04/08/2013 7:16 PM. Reason: add link

1937 Chevy Pickup
In the Gallery
1952 Chevy Panel
In the Gallery
More photos
1950 Chevy Coupe
Pictures!

I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile