Hey I 've actually been served up this question before, pilikia, good one. I personally don't know of a truckbed rack that is compatible with the Subaru Baja bed, aftermarket car and truck rack companies like Yakima Racks and Thule Racks do not have a truck rack system that'll install in the bed. However, as long as you have a 2" trailer hitch receiver installed on the Subaru Baja (very easy to find a local trailer hitch installer if your Subaru Baja does not already have a 2" hitch receiver) you can then connect either the
Yakima DryDock or the
Thule 997 GoalPost to the hitch receiver. This will provide a very safe platform to use along with the roof rack system on the front of the Baja.
If you get the Yakima DryDock just make sure you get a single crossbar to go with it. It does not come with a crossbar because Yakima Racks gives you the option to choice the crossbar length you want (either 58", 66" or 78") 58" is usually long enough to carry two kayaks flat and side by side, but very wide kayaks sometimes need the 66" length. The 78" crossbars will allow you to carry two canoes at the same time. The Thule 997 GoalPost comes with a 58" bar included so you do not get the option to choose the length like Yakima allows you to do.
Both the DryDock and the GoalPost adjust up and down so you can match the height of the crossbar with the crossbars on the front of your Subaru Baja.