Review on Dorman 520-368 Rear Control Arm for Jeep Grand Cherokee Models - Enhance Suspension Performance by Robert Hayes

I bought two of these seven months ago for a 2002 Jeep Grand Cherokee that I rarely drive. I had a hit in the back for a few hundred miles that I couldn't find. I refused to believe that bushings in these levers could already be bad. Switched to another brand and the noise was gone. The bushes failed after a mileage of less than 2000 km. Don't waste time installing let alone money! Now I understand why they have no guarantee. Please correct me if I'm wrong here.