Owner Letter

Dear GMC Truck Owner:

General Motors has determined that cenain 1992 GMC C/K, P30 Trucks and G Vans equipped with 4L80-E or 4L80-EHD automatic transmissions may have a transmission rear internal gear with an improper heat treat process. With extended use this may cause noisy operation, sluggish forward gear operation, no motion in reverse, and/or no motion in drive.

To correct this condition, dealers are to replace the rear internal gear. 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. Ask your dealer if you wish to know how much time will be needed to schedule, process and repair your vehicle.

The enclosed 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 us.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.