I'm looking into getting a lowering kit for an 09 silverado what kind would be the best for not an ungodly price. And I'm thinking a 4/7 but I would like to know how low that would put it cause its a truck and that's what its going to be used as.

 

youll be fine with a 4/7. just refer to the post i made in one of your intro threads.
with helper bags you can still tow and haul stuff.