I have a 6" Fabetch Lift in my 06 super crew. The back end is sitting a little bit low since i put my topper on. Im looking to put a 2" spacer in the front or get the fabtech coilovers. Now what size add a leaf should i use in the rear to my it sit level or a little higher?

 

go with the procomp aal

 

So, the rear is already sitting low ? and you want to jack the front end up more ? Just want to be sure. About how much lower is the rear sitting vs. the front, right now ?

I would think you'd want about 2.5" worth of lift from AAL. not sure whats out there, but that would get you level.

Do you haul/tow often ? Might want a little more lift out of the rear, that way when you do load up, it wont sag. Maybe 3" total, or so.

Could also look into the Firetsone ride rite air bags. That way, when you load up heavy, you add air and stay level. When you aren't loaded up, and driving around empty, you can let some air out, and still sit level. Kit costs a few pennies, but would be worth it if doing lots of heavy work.