msd131

its a 92 model with a homemade front end 3" lift and with blocks under the rear to raise it.......my question is this. I have heard that you can use not only the coil springs but also the leaf springs off of another stock vehicle to raise the cherokee, front and back.......does anyone know anything about this. I would like to have the bigger springs if I can but dont have the budget to go out and buy new stuff. I have several auto junk yards around my area. maybe they can be of use to me??