Will I have to install longer brakes lines with a 3" body lift. Ordered from AC and just trying to get prepared.

Thanks

You might with the greater articulation. I had to in the back with my 10 leaf spring pack due to increased articulation. Not sure about the body part, but my guess would be if the foot pedal still engages normally then the rest of the lines are in the same place since the frame didn't change geometry.