I am trying to fit a set of 36" tires on 24 inch rims under my 2007 F150 4x4 Lariat.(aka: 315/50R24). Can anyone make any suggestions on lifts?

 

Your best bet is a full 6 inch suspension lift with adjustable coilover shocks. That way you could crank up the preload up enough to get a full 7 or even 8 inches of lift if needed. What is the width and backspacing of the wheels? If they are really wide with shallow backspacing you may need even more lift.