V 2500 P/U 4WD V8-379 6.2L DSL VIN J FI (1987)
Technical Service Bulletin # 872121
Date: 891201
Frame - Cracking Under Severe Useage
GMC NUMBER:
87-2-121
GROUP:
2 Frame-Bumper Sheet Metal
DATE:
December, 1989
CORPORATE
NUMBER:
962002
Figure No. 1
SUBJECT:
FRAME REPAIR PROCEDURE
MODELS:
1985-86 K1 AND 1987 V1 TRUCKS
Under severe vehicle usage operations, some 1985-86 K1 and 1987 V1 trucks may exhibit a frame crack at the unused holes between the front shock
and engine mount (See Figure 1). The crack may start in the top flange.
If this condition is encountered, the crack should be cleaned and welded and both frame rails repaired using the fohowing parts and procedures.
Parts Information
Part Number
Description
15646904
Kit - Containing right & left frame
brace and attaching parts and graphics.
Parts are expected to be available on October 30, 1989. Until then, normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP
orders win be accepted. SPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part
will be shipped premium transportation at dealer's expense. All other order types will be canceled as incorrectly ordered while the 400 control is in place.
Welding Procedure
(See Step 4 in Left Hand and Step 6 in Right Hand Bracket Installation Procedures) When gas metal arc welding (GMAW), use Electrode E705-3. When
shielded metal arc welding (SMAW), use Electrode E7018.
