Owner Letter

Dear GMC Truck Owner:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

General Motors has determined that a defect relating to motor vehicle safety exists in CERTAIN 1993 Sierra K 10703 pickup trucks (short wheel base half-ton 4-Wheel drive). These trucks may have been built with one-piece rear Prop shafts having tube to yoke welds off location.

In this condition, the attachment of the front and/or rear yoke to the prop shaft tube may not withstand normal driveline torque inputs causing the tube to separate from the yoke. If the tube were to separate from a yoke while the vehicle was moving, the prop shaft could cause damage to the underbody sheet metal of the cab, or possibly detach from the vehicle.

To prevent this condition from occurring, your dealer will inspect and replace, if necessary, the prop shaft on your vehicle. This service will be completed for you at no charge.

Instructions for performing this service have been sent to your GMC Truck dealer. Please contact your dealer to arrange a service date. The labor time necessary to perform this service is approximately thirty minutes. Please ask your dealer how much additional time will be needed to process your vehicle.

Your GMC Truck dealer is best equipped to provide service to ensure your vehicle is corrected as promptly as possible. However, if you take your vehicle to your dealer on the agreed service date and they do not service this condition on that date or within five days, we recommend you contact GMC Truck Consumer Relations by telephone. Consumer Relations will assist you and your dealer in getting your vehicle corrected. The telephone number of the Consumer Relations office is listed in your Warranty and Owner Assistance Information Manual.

After contacting your dealer and GMC Truck Division, if you are still not satisfied that we have done our best to remedy this condition without charge within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 400 Seventh Street, S.W., Washington, D.C. 20590, or call 800-424-9393 (Washington D.C. residents use 366-0123).

The postage paid owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary correction to your vehicle in the shortest possible time. If you have sold or traded your vehicle, please furnish us complete name and address of the person you sold or traded your vehicle to and return the card to GMC Truck.

We apologize for this inconvenience; however, we have taken this action in the interest of your safety and continued satisfaction with our product.