I have a 2015 Silverado black out edition 4x4 that I would like to lower. My question is how low can I go? Mcgaughys offers a kit for 4x4's but it is only a 3/5 kit.. I would love to do there 5/7 kit but it says it is only for 2wd.. Can I do a 5/7 drop on my truck?

 

Can you, sure. Is it going to drive nice with 4WD equipment, thats another story.

Big problems are going to be cv axle angles and driveline angles.

I know some guy from canada did a 4/6 or 4/7 drop on his 4x4 sierra but I forget his name.

 

So how would you recommend approaching this if I wanted to do a 5/7 drop?

 

Anyone?

 

I've seen a few but they were NBS.
You may be able to get the front down with a coil-over conversion and do a flip lit out back with some shackles.
Like said, you'll more than likely run into problems with your CVs.
It would look killer though.

 

Are there any aftermarket CVs that would work?

 

Different CV's don't correct the angle (they dont make anything other than stock anyway). Your front diff can't be moved.

Either coilovers up front if they make them for the K2XX or drop struts and spindles. I'm unsure if they make aftermarket lowering control arms for these new trucks yet. Then a flip kit in the back is simple.

Also note the ride will be kinda crappy if you run big rims with super short sidewalls.