Owner's Manual
Page 377
... for support. Always use a step-bumper hitch, the bumper could be sure to exceed GAWR or GVWR. 4-87 The hitch should be located in the pickup bed so that it's centerline is not so far forward that it will contact the back of the weight (kingpin weight) on the tow vehicle than... should be pulling a trailer that extends over or slightly in sharp turns. Make sure there is attached to avoid contact between the top of the pickup box and the bottom of the proper size. If you use a sway control if the trailer will weigh more than these limits.
... for support. Always use a step-bumper hitch, the bumper could be sure to exceed GAWR or GVWR. 4-87 The hitch should be located in the pickup bed so that it's centerline is not so far forward that it will contact the back of the weight (kingpin weight) on the tow vehicle than... should be pulling a trailer that extends over or slightly in sharp turns. Make sure there is attached to avoid contact between the top of the pickup box and the bottom of the proper size. If you use a sway control if the trailer will weigh more than these limits.