IMPROVED JACK ASSEMBLY WITH INCREASED HEIGHT-REPLACE ASSY.

SUBJECT: IMPROVED JACK ASSEMBLY WITH INCREASED LIFT HEIGHT (REPLACE ASSEMBLY)

MODELS: 1989-1991 T PICKUP WITH OFF-ROAD SUSPENSION (ZM6)

A jack assembly with increased lift height has been released for T pickups with the off-road suspension (ZM6) package and P235/75R-15 on-off road tires. This revision will allow easier tire/wheel removal. Vehicles built after the following VIN breakpoints have the redesigned jack assembly installed at production:

Moraine GMC M2543012 Chevrolet M2254997

Shreveport GMC M8536534 Chevrolet M8239541

Pontiac West GMC M0523951 Chevrolet M0182302

SERVICE PROCEDURE:

1. Remove jack from vehicle storage container. 2. Install new jack in storage container.

SERVICE PARTS INFORMATION:

Part Number Description Qty. ----------- ----------- --- 15659942 Jack 1

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

For vehicles repaired under warranty, use:

Labor Operation Description Labor Time ---------------- ------------- ----------- E0620 Jack, replace 0.2 hrs.

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.