The springs work great. Car doesn’t sag in the rear anymore. The only “problem” with the install was the driver’s side shackle. It did not fit at all and I had to use the old shackle (which was fortunately in good condition still). The bolts were about ½ to 1 inch longer than the originals. However, since the passenger’s side fit perfectly and my car may have slight frame damage, I’ll give it the benefit of the doubt and rate it at four stars. I would have given it five, but because the rear shackles are not the same size as the originals I have to lower it.