Two drive shaft failures of oem drive shafts. Would start as vibration then the U-joints would lock. Could have resulted in power train failure and a dangerous condition.

- Fort Dodge, IA, USA

GM call this a constant velocity prop shaft (drive shaft) the design uses 5 U-joints. I had to have the drive shaft rebuilt after 45000 miles. I contacted several shops in the detroit / ann arbor area that specialize in drive shaft repair. They informed me that they have seen several of these shafts with the same problem. None of them has seen a shaft last beyond 50,000 miles. I have a contact at american axle (oem for shaft) who helped in the design for that shaft and was told it was designed to last for 100,000 miles (thats why there are no grease zerks(fittings) on the U-joints). The first repair cost me $250, and the shop did a lousy job because this shaft (which is in two parts) is very difficult to balance. Now I must have it repaired again. (I'll never buy a GM product again!!!!!)

- Whitmore Lake, MI, USA

When traveling, applying the brakes, and upon making a gradual stop, vehicle skided to a stop. Also, vehicle was placed in the park position with the emergencyparking brake enganged, vehicle rolled away freely. In addition, driveshaft separated while driving. Consumer has contacted the dealer.

- Chuckey, TN, USA

No summary

- Glasgow, KY, USA

Rear universal joint failed. (qc-aw)

- Livingston, TX, USA

The driveshaft came apart from the U joint when the vehicle was in motion, the U joint is attached to the power train. Consumer has yet to have the parts replaced.

- Portview, PA, USA

No power transmitted to drive wheels, often while trying to merge.

- Malverne, NY, USA