There are dozens of manufactors of stick on body side mouldings along with e-bay and amazon
http://www.trim-gard.com/bodysidemoldings.html
http://cowlesproducts.com/oldcontent...-side-molding/
http://www.ebay.com/bhp/truck-molding
The problem being unlike hard trim companies the aftermarkets change designs frequently so you may have to do a bit of searching to hopefully fine the exact old pattern .Good luck