CAMPAIGN: 5 SPEED MANUAL TRANS. MAIN SHAFT SEIZURE

Subject: PRODUCT SAFETY CAMPAIGN 96-C-20 - 5-SPEED MANUAL TRANSMISSION MAIN SHAFT SEIZURE --- SUPPLEMENT --- -------------------------------------------------------------

Model/Year: 1996 2-WHEEL DRIVE PICKUPS WITH 2.2L ENGINE AND 5-SPEED MANUAL TRANSMISSION (LN2 & MW2) --------------------------------------------------------

To: All Chevrolet Dealers

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This campaign supplement is being issued to add 18 vehicles to the campaign population. These units had the original transmission assembly replaced with assemblies supplied from GMSPO and are subject to the same failure as the original equipment transmissions. Please file this with your campaign bulletin materials.

VEHICLES INVOLVED

Involved are certain 1996 S model 2-wheel drive pickup trucks equipped with 2.2L engines and 5-speed manual transmissions and built within the following VIN breakpoints:

PLANT YEAR MODEL PLANT CODE FROM THROUGH ---- ----- ----- ----- ---- -------

1996 S Truck Linden "K" TK100134 TK1594G2 1996 S Truck Shreveport "8" T8100116 T8133112

ADDITIONAL VIN's INVOLVED -------------------------

1GCCS1444T8134431 1GCCS1440TK136535 1GCCS1449T8138054 1GCCS1442TK137301 1GCCS1943T8138320 1GCCS1949TK137515 1GCCS1449T8141083 1GCCS1447TK138024 1GCCS1444T8150967 1GCCS1449TK138509 1GCCS144XT8151380 1GCCS1441TK138620 1GCCS1440T8151890 1GCCS1442TK145821 1GCCS1946T8151949 1GCCS1944TK158708 1GCCS1447T8155242 1GCCS1947T8156464

Involved vehicles have been identified by Vehicle Identification Number Computer Listings. Computer listings contain the complete Vehicle Identification Number, owner name and address data, and are furnished to involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.

These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

Please review this message with all appropriate dealership personnel and file it with your campaign bulletins.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.