I want to put a tow hitch on the back of my Tracker. I know that my truck is only rated for a class 1 hitch, but would prefer to install a class 3 type so i have the 2" tube. That way I don't need a different set attachments for my tracker and for my Dakota. looks like i can't purchase a class 3 that is made to fit my tracker, so it will have to be a modify job. I was just thinking last night about that factory installed round pipe below the bumper. I thought i could buy a cheap $10 2" receiver tube, notch that pipe out, and weld the tube in the pipe with a reinforcing plate over the top and back. I was wondering if anyone knows how thick that factory installed round pipe below the rear bumper is? The loads for class 1 are pretty small, so it wouldn't have to be too beefy. any thoughts on this? does anyone know if anyone has tried something like this before?