Looks like the two expected make some, Yakima and Thule. I noticed this one from Thule: Thule 822 Bed Rider - Thule Truck Bed Bike Racks It looks pretty good, since it's adaptable and doesn't make a difference bedliner or not. Searching google with Truck bed bike rack returns a good amount of results.
Check you LBS, I was in mine and they have some similar to this Thule add a block They had 2 different types both use a quick release skewer one has a set up for a lock so that when it is closed you can put a padlock through it to keep it from being undone. I don't know the brand but if I get a chance in the next couple of days I will get it. I am going to get me some and bolt them to my across the bed toolbox.
