I had a friend of mine who does body work do the install for me so I can't say for sure. He did say that it took him longer than expected (~8 hrs) and was a pretty tough job considering the bumper removal.
Finally got all the mods on (for now). I did the rough country 3.75 inch combo kit (2.5 inch leveling kit with the 1.25 inch body lift). Also went with Mickey Thompson Baja ATZ 275/65/20 on the stock rims. Absolutely love how it turned out.