Leveling kit 12 sierra

[Ackbobby]

Rough country or pro comp .i noticed that the rough country come in aluminum and steel not so sure as to which one ?boy do I need help here ? Am so lost wanna do it. It is a 2012 sierra would like to make it look a lil bit beefier but not totally over kill something that gives it a lil more height ...what could I do as for tires later was looking at bf's for it how big can I go? Thanks guys in advance ...
Also 2 or 2.5 inch ....height

 

[mattvlmarshall]

When I was looking for a leveling kit I was in the same situation R/C or pro comp. I went with the procomp. My buddy works at a truck store and he said people buy R/C and they end up pulling them off because the break pretty easily. Yea they cost a little more the procomp have been an amazing choice. I've been off roaming with my truck quite abit and I love the procomp system.