Hello and WELCOME. As for the flasher, I think a Georgetown is on a Ford F53 chassis. You can go here: http://www.motorcraftservice.com/vdi...d=&kevin=rules
On the left side of the page, look under owner manuals. Then select year, etc. Hope it helps.
One other thing to always check, make sure the 4 way flashers are working. Sometimes if they don't work, the switch will get turned on, and this will cause the regular flashers not to work.
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic
2008 Work and Play 18LT