I know it can be done but will i need to get longer brake lines or anything else to do this?

 

I think the higher suspension lift needs after market drive shafts, higher bump stops, extended brake line or brake line brackets, adjustable track bars.
In my opinion, adding 2" spacers to the existing 4" coil springs will not be so reliable.

 

I did 1" to compensate for the Bumpers. But I agree 2" might be on the edge. Might be just as good to go with a 1" body lift.

 

You're looking at a whole bunch of stuff for 6 inches of lift.

I'm not sure what you already have, but check out the FAQs for some help.
https://www.jk-forum.com/forums/show...272#post211272

 

6" of lift is a lot of lift and you'll need more than just longer brake lines. really, you need a complete kit with adjustable control arms, dropped pitman arm, track bar relocation brackets, adjustable track bars, longer shocks, new drive shafts, etc. in truth, at this height, you really should be looking at long arms too.

 

what they said......