I just got my 6" BDS springs, im picking up a steering arm from a friend and now i just need shocks and brake lines. I got some brand new Fabtech shocks from my friend for free, but they are from his 95 chevy 1500, and they are 2 different sizes, i think 2 were from the front and 2 were from the rear. The rears have like 14" of travel and then the front have about 10 1/2". My question is how much travel is needed for a 6" lift, and is the front and rear the same, i have dual in the front but i only plan on putting single up front. I have a 3inch on there now, can i still use those shocks until i get new ones? My second thing is how long to my brake lines have to be? Is it worth getting steel cables or just cheap ones from the local auto parts store?