UPDATE-SEC. 3A REAR CAMBER ALIGNMENT SPECIFICATION

Model and Year: 1990 W CAR

THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 90-58-3A, DATED SEPTEMBER 1989. THE TIRE SIZE AND HEIGHT HAS BEEN CORRECTED. ALL COPIES OF 90-58-3A SHOULD BE DISCARDED.

Use these revised rear camber alignment specifications when checking or setting rear wheel alignment instead of those shown in the 1990 Chevrolet Lumina Manual.

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-R15 +.10 DEG+/-.5 DEG 102 mm (4.02 in.) F41 P215-60-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).

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.