Service Procedure

1. Raise vehicle on hoist and inspect front and rear springs. Refer to chart below to establish correct spring application.


INCORRECT SPRING CORRECT SPRING

FRONT FRONT

ALPHA CODE PART NUMBER ALPHA CODE PART NUMBER

RK 370978 PC 378503
RM 370979 PC 378503
RN 370980 PC 378503
FM 14003385 PA 378501
FN 14003386 PA 378501

REAR REAR

WS 485714 XY 485748
WT 485715 YH 482086
HH 10003182 YH 482086


If inspection determines vehicle has correct springs, lower vehicle and refer to Step 3. Should replacement be required complete Steps 2 and 3.

SERVICE PROCEDURE (CONT'D)

2. Removal and installation procedure for replacing springs may be found in the 1985 Impala, Caprice, Monte Carlo, El Camino Shop Manual (ST-329-85), on Pages 3C-12 and 3D-4.

3. Install "Campaign Identification Label" according to instructions contained in this bulletin.


PARTS INFORMATION

Parts required to complete this modification are to be obtained from General Motors Warehousing and Distribution Division (GMWDD). To ensure that these parts will be obtained as soon as possible they should be ordered from GMWDD on a C.I.O. order with no special instruction code, but on an advise code (2). When ordering parts, refer to spring chart for correct spring application.