DRIVE LINE SHUDDER WHEN ACCELERATING FROM A STOP. Chevrolet Chevy K Pickup

SUBJECT: DRIVE LINE SHUDDER WHEN ACCELERATING FROM A STOP (REPLACE REAR SPRINGS AND U-BOLTS)

MODELS: 1994-96 CHEVROLET AND GMC K1, EXTENDED CAB, 8 FT. BOX MODELS WITH TURBO DIESEL ENGINE (VIN S - RPO L56)

CONDITION:

SOME CUSTOMERS MAY REPORT A DRIVE LINE SHUDDER WHEN ACCELERATING FROM A STOP.

CAUSE:

THE PROP SHAFT SLIP YOKE SPLINES LOCK DUE TO REAR SPRING WIND UP.

CORRECTION:

STIFFER (HIGHER LOAD RATED) REAR SPRINGS WILL HELP TO RESIST THE WIND UP AFFECT. REPLACE THE REAR SPRINGS AND U-BOLTS WITH THE PARTS LISTED BELOW.

SERVICE PROCEDURE:

REPLACE THE LEAF SPRINGS AS DESCRIBED IN SECTION 3D, REAR SUSPENSION, OF THE APPROPRIATE YEAR C/K TRUCK SERVICE MANUAL.

IMPORTANT: DO NOT REUSE THE ORIGINAL U-BOLTS.

PARTS INFORMATION:

P/N DESCRIPTION QTY 15659739 REAR SPRING 2 15529595 U-BOLTS 4

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OP DESCRIPTION LABOR TIME E5137 SPRING ASSEMBLY, REAR LEAF USE PUBLISHED REPLACE (BOTH) LABOR OPERATION TIME

IMPORTANT: LABOR OPERATION IS CODED TO BASE VEHICLE COVERAGE IN THE WARRANTY SYSTEM.

FIGURES: 0

CAPTIONS: 0

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.