does anyone know how long a shackle would have to be to raise the front end of an 01 f350 diesel it would basically hook to the frame and then to the leaf spring, please let me know

 

Fab tech or other companies for that matter make shackle lift kits, But you do not want to just place a longer shackle in the rear as it will clock your front differential down and increase your front drive line angle, (and probably break your U-joint) I'm sure you know this but never put lift blocks in the front either that is flat out dangerous.

 

The shackles are about 2-3" lift that would even the front out with the stock rear set up. Air bags would keep it level when hauling or towing.