If you loom at the second picture, there are 2 brackets that are tied to it. Those brackets go into the utilitrac rails.
Utilitrack Bed Extender in Michigan
4
Bed Extender with Utilitrack brackets, I have had it in storage ever since I bought my truck three years ago. $100 prefer not to ship, as it is very bulky. Near Ann Arbor, MI and Livingston county area.
