GREASABLE ARM BALL JOINTS UPPER & LOWER

SUBJECT: GREASEABLE UPPER AND LOWER CONTROL ARM BALL JOINTS (SERVICE PARTS INFORMATION)

VEHICLES AFFECTED: 1988-90 C/K TRUCKS

Greaseable ball joints are now available for service use on 1988-1990 C/K trucks as replacements for maintenance-free ball joints.

SERVICE PROCEDURE:

For any vehicle, through usage, resulting in the need for ball joint replacement, it is recommended that all maintenance-free ball joints be replaced.

SERVICE PARTS INFORMATION:

Quantity/ Part Number Model Year Description Truck

15657212 C1,2,3 1988-90 Lower Control Arm 2 Ball Joint 15634942 K1,2,3 1988-90 Lower Control Arm 2 Ball Joint *15659518 K1 & PF4 1988-90 Upper Control Arm 2 Aluminum Wheel Ball Joint 15634904 C/K1,2 & C5Z 1988-90 Upper Control Arm 2 Ball Joint *15634909 C/K 2&C6P,3 1989-90 Upper Control Arm 2 Ball Joint 15635534 C/K 3 1988 Upper Control Arm 2 Ball Joint

Parts are currently available through CANSPO.

Parts are expected to be available August 24, 1990. All orders will be cancelled until that date. This kit includes 35mm bolts which are 5mm shorter than bolts used in other kits. Parts are available in limited quantities.

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.