You gotta go with the
Rocky Mounts Clutch SD bike rack. This is an awesome fork mount block that is made specifically for trucks with track systems, like your Toyota Tacoma, Toyota Tundra models, Nissan Frontier, Titan and probably some others I can't think of. The RockyMount Clutch SD installs really quickly onto the track and the skewer is locking so the bike stays secured. Not sure how many bikes you are trying to carry but you could probably attach three of the Clutch SD truck racks without the bike handlebars interfering with each other.
A heads up the stingah, if you do go with the RockyMount bike rack be sure to get the Clutch SD Rocky Mounts also makes a regular Clutch bike rack that bolts onto the truck bed but doesn't come with the hardware for track systems.
See the pic below for how it looks...