I installed this from AMP Research with side mount brackets for an F-150. Extender Part # 74801-01A. Bracket Part # 74602-01A. Looks like it's made for the ST. A bit pricey, but I took the plunge. Truck Bed Tailgate Extender-Styleside Amp Research 74801-01A for sale online | eBay.Thanks, I will! They are very rare finds around here.
Do you have any Salvages nearby? I wasn't really wanting one for $100 or more(I've owned the truck 14 years,) but I got lucky last week and found one at a salvage in great condition for $12.99. Guess I'll see how useful it is!I have been looking for a bed extender for my 2008. Do they help much or does it ride in your garage more than your truck?