Buddy of mine just had a 2/4 belltech put on a 09 (I think) gmc ec half ton. When he got it back the rear looked to be about inch in a half to two inches lower than the front. I've seen this in other pics but is there a way to fix it, if not he said he was just gong back stock, thanks for the help

 

how was the rear dropped. flip kit? hangers? sounds like it was a flip kit and he used the stock hangers. there should be some in the kit to raise it back up if it was a flip kit

 

As mentioned above..take a look to see what shackles he has..stock,lower, or lift...Obviously if he has lower, put back in stock...If he has stock put in lift..

If he has shackle/hanger drop check to see if there are any additional holes on both shackle and hanger for adjustment...He would want the holes closer to the ground for a lift up...