Rear Axle Issues
I have had a failure of the RH end of the rear axle on my 97 Rialta. This resulted in a complete detachment of the wheel and brake assembly from the vehicle while underway. A visual inspection leads me to believe the axle-end fractured as a result of long-term fatigue cracking in a specific area. The opposite end of the axle shows cracking in the same area.
I have spoken with a gentleman at NHTSA and he indicates this has been the second such failure of a Rialta axle in this manner reported to them in the last 6 months. Comparative photos of the two instances appear almost identical, in my opinion. If you have had a failure of this type you might want to let them know about it. I have the contact info if you need it.