4 inch drop in back

[gary67]

if i buy the 4inch drop springs will that set my truck about level?

and will i have to change the shocks and the sway bar?

it looks like from the top of the tire on back its about 4 inches differant than on th front that was why i was droping the back 4 inches a lot of the folks tell me there should be only 2 inch differance from back to front.

Thanks
for all the help.