UPDATE-SEC. 3A REAR CAMBER ALIGNMENT SPECIFICATION

VEHICLES AFFECTED: 1990 CHEVROLET AND PONTIAC W-CARS

Use the revised rear camber alignment specifications when checking or setting rear wheel alignment in the 1990 Chevrolet Lumina and Pontiac Grand Prix Service Manuals.

REAR CAMBER ALIGNMENT SPECIFICATIONS SUSPENSION (A) TIRE SETTING "D" HEIGHT (B) -------------- ---- ------- -------------- FE1 P195-75-R14 +.10 DEG +/-.5 DEG 104 mm (4.09 in.) F41 P205-65-R14 +.10 DEG +/-.5 DEG 102 mm (4.02 in.) F41 P215-6O-R16 -.15 DEG +/-.5 DEG 93 mm (3.66 in.)

(A) To verify suspension used refer to Service Parts Identification Label located on underside of rear compartment lid, refer to GENERAL INFORMATION (SECTION OA).

(B) To properly diagnose trim height, refer to "Trim Height Diagnosis" in DIAGNOSIS (SECTION 3).

SECTION 3A - CHEVROLET LUMINA

REAR CAMBER ALIGNMENT SPECIFICATIONS SUSPENSION (A) TIRE SETTING "D" HEIGHT (B) -------------- ---- -------- --------------- FE1 P195-75-R14 +.25 DEG +/-.5 DEG 112 mm (4.41 in.) FE1 P205-65-R15 +.25 DEG +/-.5 DEG 112 mm (4.41 in.) FE3 P215-60-R16 +.10 DEG +/-.5 DEG 105 mm (4.13 in.) FE3 P245-50-R16 +.10 DEG +/-.5 DEG 105 mm (4.13 in.)

(A) To verify suspension used refer to Service Parts Identification Label located on underside of rear compartment lid, refer to GENERAL INFORMATION (SECTION OA).

(B) To properly diagnose trim height, refer to "Trim Height Diagnosis" in DIAGNOSIS (SECTION 3).

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.