this may seem like a dumb question but i am thinking about get leveling coils for my 96 4x4 f150 and was wondering if they are designed to go with or with out the factory spring spacer for the amount of lift the coils are said to be whether that's 1.5" or 2". basically what im asking is if i buy 2" coils for my truck will i get 2" of lift with out my factory spacer?