If you are a 1/2 ton GMT-900 NNBS they do not have torsion bars.

 

witch ones the 1/2 ton I'm the cc 1500

 

What year is your truck? I assumed that it's a 2007 or newer, because you posted in the GMT900 section, and the part number you listed in the OP is for GMT900.

 

Oops didn't catch that part!

Not 100% sure if it's nnbs, I'm sure it's the same for the most part. Yes you can achieve 4" without aftermarket leafs. Or just do a flip kit with some lift hangers, then if you wanna go lower just re adjust and you're good to go.

 

ya its an 11

 

If it was mine, I'd go 4/6 on a 2011.

 

Yeah Me too, Due to the larger looking fender well. These trucks look great lowerd but a 2-4 is hardly noticeable i think as compared to the 99-07 trucks.

 

It takes someone who know's trucks to spot a 2-4 you cant tell it's even been dropped when done.

3-5 anyone knows it's dropped

4-6 no question about it.

 

so if i already have to 2/4 spindles and leafs to go lower to 3/5 i would need to add what

 

You could add the lowering struts in the front to get an extra inch and could get 1" shackles for the rear.