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All Technical Service Bulletins for Brake Proportioning/Combination Valve: > < Recall - Brake Proportioner Valve Breakage|Page 3499
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Brake Proportioning/Combination Valve: Recalls
Recall - Vehicles Involved in Proportioner Valve

Model Year 1983

Bulletin No. 83-C-8A

File In Group  50

Number  2A

Date  Oct. '83
SUBJECT:

LIST OF VEHICLES INVOLVED IN BRAKE PROPORTIONER VALVE CAMPAIGN - 83-C-8

MODELS AFFECTED:

1983 Centurys, Skylarks, and Skyhawks

Campaign Bulletin 83-C-8, Group 50, Number 2, listed the beginning and ending serial numbers for each assembly plant of vehicles involved. Only
certain groups of vehicle serials within these breakpoints require Campaign 83-C-8.

On page two (2) of this bulletin is the complete serial number list, by assembly plants, of vehicles requiring this campaign.
1983 VEHICLES INVOLVED IN CAMPAIGN 83-C-8

Model

Plant

Beginning

Up to and Including

Century

Doraville

DD408333

DD435539

Century

Doraville

DD437838

DD438354

Century

Doraville

DD438864

DD439385

Century

Doraville

DD445070

DD445796

Century with JA1*

Oklahoma City

D6403491

D6412752

Century with JA2**

Oklahoma City

D6403725

D6412347

Skyhawk

Leeds

DK411090

DK427046

Skyhawk

Leeds

DK432176

DK433771

Skylark

Willow Run

DW425910

DW448411

Skylark

Willow Run

DW448666

DW449953

Skylark

Willow Run

DW450715

DW451475

Skylark

Willow Run

DW452448

DW453135

Skylark

Willow Run

DW456205

DW456985

Skylark

Willow Run

DW457709

DW458221

Skylark

Tarrytown

DT403790

DT403961

Skylark

Tarrytown

DT404001

DT404418

Skylark

Tarrytown

DT404419

DT404955

Skylark

Tarrytown

DT404956

DT406282

Skylark

Tarrytown

DT406392

DT406517

Skylark

Tarrytown

DT406649

DT407043

*JA1 =  Lt. Duty Brake System - Models with 2.5L engine and GVWR under 1784 KG.
**JA2 = Hvy. Duty Brake System - Models with 2.5L engine and GVWR over 1784 KG and models with 3.0L gas engine and 4.3L diesel engine.
(GVWR can be found on the certification label located inside the driver's door).

All Technical Service Bulletins for Brake Proportioning/Combination Valve: > < Recall - Brake Proportioner Valve Breakage|Page 3499