1998 Jeep Grand Cherokee suspension problems

Tl* the contact owned a 1998 jeep grand cherokee. While driving approximately 3 MPH, the rear driver side axle fractured causing the contact to crash into a ditch and then a telephone pole. The rear passenger side axle fractured and the air bags failed to deploy. A police report was filed. The contact sustained injuries to the neck and the right shoulder that required medical attention. The vehicle was destroyed and towed to a salvage yard. The manufacturer was not made aware of the failure.

Vehicle makes a knocking noise. Noise appears to be coming from area of front passenger tire area....my mechanic has replaced the shocks, control arm bushings and transmission mount strap and track bar bushings....this has not solved the problem. The jeep dealership in north charleston, sc has replaced the sway bar links and basically rebuilt the rear end....still knocking persists. Jeep advises noise is normal...I disagree. Jeep worked on this vehicle about 2 years ago...my mechanic in january of 2003.