Hello i have a 99 2 door tahoe and im interested in lifting it 4 inches or so. I have seen people saying i want to lift it in the front but would you lift in in the back too to make it even? I don't really know how to go about this what i was thinking of was calling a body shop and asking them about it. A lot of kits online are really expensive and i can only afford in the 600-700 range. what do you guys think? does it need a 4 incher?