New here and hoping to get some input. I just purchased 2" leveling kit for my 2006 f150, the blocks are 1 3/8" thick. This doesn't maqke sense to me, will I obtain the desired 2" of lift at the axis on the front of my truck? I just received these last night so the company was closed today. I'm going to call them tomorrow but I was hoping to get some additional input from you guys that have installing leveling kits. ???

 

They are correct. The strut attaches inboard of the spindle so it takes less than 2" of displacement of the strut to push the spindle down 2". Think of a seesaw. If you grab it at a point 2/3 of the way from the pivot to the end and move that point 2 inches, the end moves 3 inches. Your spacers are right.

...... I just went out and measured mine. They are a little over 1 3/8, more like 1 7/16, and I ended up getting about 2 3/8 actual lift.

 

Yes, I put a 2.5" on and it measured about 1 11/16" tall and a 3" measures about 1 15/16" tall, so 1 3/8" will give you about 2" of lift-plus or minus.