IMPROVED JACK ASSEMBLY WITH INCREASED HEIGHT-REPLACE ASSY.

Subject: IMPROVED JACK ASSEMBLY WITH INCREASED LIFT HEIGHT

Model and Year: 1989-91 T PICKUP WITH OFF ROAD (ZM6) SUSPENSION

A jack assembly with increased lift height has been released for T pickups with the off road (ZM6) suspension 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 M2254997 SHREVEPORT M8239541 PONTIAC WEST 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

E0620 Jack, replace

Use applicable labor time guide for labor hours.

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.