Conflicting info about 5100 lift/level

I found a one inch front diff drop kit for sale here. Does anyone think if should buy it for the 5100 lift I am doing? The lift should yield two inches of lift.

 

No. Not needed. Save your $

 

Hello Forum. Long time no hear.

I got all the parts and am pulling the trigger Friday, and killing a few beers in the process. I am going to photo document profile shots of the truck. I do not think pictures of the loft are really necessary as there seem to be tons of tips and tricks on that, I just want to provide before and after measurements at various points on the truck.

Stay tuned and thank yoi all for the excellent input!