Don't Despair !
Robert ;
First do the research to find out which specific Fulton Sun Shade fits an AD as they're not all the same , the vendors will always sell you whatever they have on hand , LYING and saying this is the correct part.
Then , go to PO-Mona and buy one for $200 or less . there's no shortage of these in So. Cal. yet , new or used .
If you're " Yankee Thrifty " (means : cheap) like me , you can make a simple sign and hang it on your back saying " Sun Visor Wanted for '47~'54 Chevy Truck" and have cash ready ~ you'll get several for $150 or less.....
DO NOT buy one sans the various brackets and clamps , screws etc. as those parts are repopped but can be $pendy and hard to find .
If you can afford it , I highly suggest buying a good used one from Joe as it'll be the correct item and fit well plus you'd be helping a fellow old trucker....
The original installation instructions are available too , E-Bay etc. .
Joe's link made for a nice laugh ! .