hi need some help/ info..on how hard is it to install springs on an 04 box s..i was looking for a manual and i subscrided to somthing call all data online for cars... i dont find it that easy to use anyway i digress..it says to remove the rear suspesion i.e the springs i have to remove the driveshaft....is this true?any help would be great a walk through would be even better thanks...