2007 Chevy Express Ball Joint

I am still waiting to hear officially from the service station where I had the vehicle towed, however, initial prognosis is that my ball joint went out on the front left (driver's side) wheel. I lost the ability to steer properly, grinding noise, and there was a report of ball bearings dropping behind the vehicle.

It is my understanding that the repair price varies based on the difficulty of making the repair. The parts are generally not that bad. Do you have any idea if the Express van falls toward the easier repair or most difficult?