I'm looking to get a 6'' lift for my '99 cherokee and was wondering is this an easy project or what other mods are gonna need to be made to make this happen

 

If you are going 6" you are going to need to go with either long arms or Y-link up front.. Definitely new leaf packs, trackbar, sway bar disconnects, SYE & driveshaft, shocks coils and hmm probably some other things which will come in the kit itself.. Above all I would strongly suggest a longarm or y-link front end. The short control arms are not gonna work well at 6" of lift.. You will also need a drop pitman arm.

Lifts I would look at are RE or Rustys offroad and there are a few others that specialize in longarm and y-link systems..

 

If you cannot afford long arms (they can be costly), you can go with drop brackets from rough country. I would seriously invest in one of the two at that height.