Today on our 2008 GMC Sierra, we are test-fitting the Darby Extend-a-Truck hitch-mounted load extender. The part number for that is DTA944. As you can see, we do have a ladder strapped down to our Darby. Now, this Extend-a-Truck can hold anything, like a kayak, any lumber or ladders such as this. All you have to do is load up and make sure you strap down any of your material that you're carrying… see more >