So I've been back and forth on lifts for a while and I finally settled on the teraflex 2.5 coil lift. But every time I review them I read people saying that they actually received about 3 inches of lift. My question is, would this additional lift of about .5 inches affect the drive train much? I know that's about the boundary of you having to re-adjust it. I plan on putting an after market bumper down the line which should add some sag but I don't want to screw up the drive train in the mean time.