Just bought a beautiful 2008 F150 Harley thats being delivered in a few days. It arrives Friday and I literally need to tow my 6x12 enclosed Haulmark trailer on Saturday and won't have time to shop for one early Saturday. I want to get the correct ball mount in the meantime. Can somebody help me with the correct drop? The factory 22" wheels have me guessing at drop or I'd just go with a 5 3/4" or 6" drop. Thanks in advance.

 

With your trailer on the tongue jack, adjust it till it's level. Then measure from the ground to the tongue socket. When you get the truck, measure from the ground to the receiver. Subtract the 2 numbers.