LTG REQUEST FOR REVIEW UPDATES JULY THRU OCT. 1989

Model and Year: ALL MODELS

THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 90-82-OA. THE LAST SIX PAGES WERE INADVERTENTLY PRINTED TWICE. ALL COPIES OF 90-82-OA SHOULD BE DISCARDED.

This bulletin provides updates to the published Chevrolet Labor Time Guide. July through October updates are attached.

These updates will be included in future revisions of the Labor Time Guide and, at that time, it is recommended that you dispose of the paper copy.

In the case of past model year updates, it is recommended that a copy of the update be retained with the appropriate model year labor time guide as a complete revision will not be provided.

REQUEST FOR REVIEW TRUCK Vehicle Series OPERATION DESCRIPTION OPERATION C K G ML S T R V P NUMBER VIN CODE

COVER, RUBBER FLOOR - R&R OR REPLACE NOTE: Applicable model years: 1988,89,90 FRONT C4222 EXC BLAZER/JIMMY, C/K EXTENDED CAB .8 .8 ADD: A- W/Floor Shift Or 4X4 .3 .3

BEARING AND HUB ASSEMBLY, FRONT WHEEL - REPLACE NOTE: Applies to 1990 'L' Van RIGHT E2320 LEFT E2321 EXC SERIES 3500 .7 BOTH E2327 ADD: EXC SERIES 3500 1.0 A- To Replace Steering Knuckle Inner Dust Seal (One) .1 B- To Replace Steering Knuckle Inner Dust Seal (Both) .2

SEAL, STEERING KNUCKLE INNER DUST - REPLACE NOTE: Applies To 1990 'L' Van RIGHT E2540 .8 LEFT E2541 .8 BOTH E2547 1.4

BAR, FRONT TORSION - ADJUST E3300 .4 NOTE: Applies To 1990 'L' Van

BAR, FRONT TORSION - REPLACE NOTE: Applies To 1990 'L' Van RIGHT E3320 4.3L .9 LEFT E3321 4.3L .9 BOTH E3327 4.3L 1.0

ARM, TORSION BAR PIVOT - REPLACE NOTE: Applies to 1990 'L' Van RIGHT E3330 .4 LEFT E3331 .4 BOTH E3337 .6

CUSHION, FRONT TORSION BAR SUPPORT MEMBER - R&R OR REPLACE E3340 1.0 NOTE: Applies to 1990 'L' Van

CROSS MEMBER, TORSION BAR SUPPORT - REPLACE E3350 1.0 NOTE: Applies To 1990 'L' Van

HOSES, POWER STEERING HYDRAULIC - REPLACE NOTE: Applies to 1990 'L' Van RETURN, GEAR TO COOLING PIPE E8625 .3 RETURN, COOLING PIPE TO RESERVOIR ADD: E8626 .3 A- W/Hydraulic Brake Booster .1

LINE, PRESSURE BOOSTER TO PUMP HYDRAULIC - REPLACE E8820 .4 NOTE: Applies to 1990 'L' Van

LINE, PRESSURE BOOSTER TO STEERING GEAR HYDRAULIC - REPLACE E8840 .4 NOTE: Applies to 1990 'L' Van

HOSE, RETURN BOOSTER TO PUMP HYDRAULIC - REPLACE E8860 .3 NOTE: Applies to 1990 'L' Van

COOLER, POWER STEERING OIL HYDRAULIC - REPLACE E8940 .9 NOTE: Applies to 1990 'L' Van

BRACKET, POWER STEERING PUMP ASSEMBLY, MOUNTING - REPLACE E9020 NOTE: Applies To 1990 'L' Van V-6 .7 ADD: A- W/Hydraulic Brake Booster .1

PUMP ASSEMBLY, POWER STEERING E9040 - R&R NOTE: Applies to 1990 'L' Van ADD: A- W/Hydraulic Brake Booster .1

PUMP ASSEMBLY, POWER STEERING E9050 - REPLACE NOTE: Applies to 1990 'L' Van ADD: A- W/Hydraulic Brake Booster .1

GEAR ASSEMBLY, POWER STEERING E9720 - R&R NOTE: Applies to 1990 'L' Van ADD: A- W/Stabilizer Bar .2 B- W/Hydraulic Brake Booster .1

GEAR ASSEMBLY, POWER STEERING E9740 - REPLACE NOTE: Applies to 1990 'L' Van ADD: A- W/Stabilizer Bar .2 B- W/Hydraulic Brake Booster .1

PROPELLER SHAFT, FRONT F1200 .4 - REPLACE Note Applies to 1990 'L' Van

SHAFT, OUTPUT - REPLACE NOTE: Applies to 1990 'L' Van RIGHT F1420 .6 LEFT F1421 .6 BOTH F1427 1.1

SEALS, OUTPUT SHAFT - REPLACE NOTE: Applies to 1990 'L' Van RIGHT F1440 .6 LEFT F1441 .6 BOTH F1447 1.1

AXLE ASSEMBLY, DRIVE - R&R NOTE: Applies to 1990 'L' Van FRONT RIGHT F1500 .5 LEFT F1501 .5 BOTH F1507 .8 ADD: A-To R&R, Repack, Recondition Or Replace Outer CV-Joint (Each) .3 B-To R&R, Repack, Recondition Or Replace Inner CV-Joint (Each) .3 C-To Replace Shaft (Each) .5 D-To Replace Inner And/Or Outer CV-Joint Seal (Each Side) .3

AXLE ASSEMBLY, DRIVE - REPLACE NOTE: Applies to 1990 'L' Van FRONT RIGHT F1510 .5 LEFT F1511 .5 BOTH F1517 .9

SEAL, PINION SHAFT OIL - REPLACE NOTE: Applies to 1990 'L' Van FRONT DIFFERENTIAL F2022 4.3L .6

FLANGE, PINION SHAFT - REPLACE NOTE: Applies to 1990 'L' Van FRONT DIFFERENTIAL F2042 4.3L .6

TUBE ASSEMBLY, DIFFERENTIAL OUTPUT SHAFT - R&R OR REPLACE F2115 1.0 NOTE: Applies to 1990 'L' Van ADD: A- To Replace Output Shaft Seal .1 B- To Replace Output Shaft And Pilot Bearing .1 C- To Recondition Tube Assembly .3

CARRIER ASSEMBLY - R&R NOTE: Applies to 1990 'L' Van FRONT DIFFERENTIAL F2122 EXC SERIES 3500 2.0 ADD: A-To Replace Pinion Shaft And/Or Side And Pinion Gears Exc Series 3500 .4 B-To Replace Side Bearings Exc Series 3500 1.0 C-To Replace Pinion Bearings Exc Series 3500 1.7 D- To Replace Ring Gear And Pinion Exc Series 3500 1.6 E-To Replace Case Exc Series 3500 1.2 F-To Replace Carrier Exc Series 3500 1.8 G-To Replace Output Shaft Bearings (Adjust Sleeve) Exc Series 3500 .9

CARRIER ASSEMBLY - R&R ADD: H- To Replace Mounting Bushings Exc Series 3500 .2 I- To Recondition Carrier Complete Exc Series 3500 2.2 J- To Recondition Tube Assembly Exc Series 3500 .3

CARRIER ASSEMBLY (COMPLETE) - REPLACE NOTE: Applies to 1990 'L' Van FRONT DIFFERENTIAL F2142 EXC SERIES 3500 2.2

VENTILATOR, AXLE - REPLACE NOTE: Applies to 1990 'L' Van FRONT F3269 .3

BOOSTER ASSEMBLY, HYDRAULIC H1300 1.1 POWER BRAKE - R&R NOTE: Applies to 1990 'L' Van

BOOSTER ASSEMBLY, HYDRAULIC POWER BRAKE - REPLACE H1320 1.1 NOTE: Applies to 1990 'L' Van

SEAT AND GUIDE, HYDRAULIC POWER BRAKE ACCUMULATOR - REPLACE H1360 .3 NOTE: Applies to 1990 'L' Van

ACCUMULATOR OR SEAL, HYDRAULIC POWER BRAKE - REPLACE H1380 .3 NOTE: Applies to 1990 'L' Van

SEAL AND/OR PLUG, HYDRAULIC POWER BRAKE SPOOL - REPLACE H1400 .3 NOTE: Applies to 1990 'L' Van

HEATER AND/OR GASKET, TBI - J5128 .8 .8 .8 - - .8 .8 .8 REPLACE NOTE: Applicable model years: 1988,89,90

LEVER, TRANSFER CASE GEARSHIFT K1520 .5 - REPLACE NOTE: Applicable model years: 1987,88,89,90

SEAL, TRANSFER CASE OIL - REPLACE NOTE: Applies to 1990 'L' Van FRONT K4162 4472 .5 REAR K4163 4472

GASKET, TRANSFER CASE TO K4250 1.6 ADAPTER REPLACE NOTE: Applies to 1990 "L' Van ADD: A- To Replace Adapter And/Or Seal .5

GASKET OR SEALER, TRANSFER CASE REAR OUTPUT SHAFT HOUSING - REPLACE K4260 NOTE: Applies to 1990 "L" Van 4472 .5

TRANSFER CASE ASSEMBLY K4410 - REPLACE NOTE: Applies to 1990 "L" Van 4472 1.3

LAMP ASSEMBLY - REPLACE NOTE: Applicable model years: 1987,88,89,90 SIDE MARKER RIGHT REAR N1574 .2 .2 LEFT REAR N1575 .2 .2

BAR ASSEMBLY, LIGHT R2430 1.0 - REPLACE NOTE: Applicable model years: 1988,89,90

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.