The front Subframe came with ridetech coilovers and I have always like Ridetech's products. It was an easy to pick their 4 link for the rear. The install seemed simple and the price is better than most of the other options. I got the weld on lower brackets since I was using the 9" housing and I also went with the rod ends but I wish I did a combination with some Poly joints.

The upper cradles were very easy to install. They fit my car very well and needed no adjustments. The rest of the install was not as easy as I had hoped. I knew some fabrication and welding was needed for the "bolt in" 4 link but I was really disappointed with the instructions and information available from ridetech.
The directions don't include a single measurement or diagram to help you locate the brackets. They make it seem like they fall into place but that is not the case especially when using a 9".
After calling and getting as much info as possible I starting installing the brackets. I needed to modify the upper brackets to fit on the 9" housing but finally got everything where I thought they should be and welded the brackets on.