FRT. DRIVE AXLE INBOARD AND OUYBOARD BOOT CLAMP/INSTALL

MODELS: 1988 AND 1989 K1, K2, K3

THIS BULLETIN CANCELS AND REPLACES GMC TRUCK SERVICE BULLETIN 89-T-08 DATED DECEMBER 1988, ALL COPIES OF WHICH SHOULD BE DISCARDED.

Starting with the VIN numbers listed below, the 1988 K3 Inboard and Outboard Front Axle Boot Clamps were changed in production from a crimped to a swaged clamp design.

Plant VIN

GMC Pontiac East 1GTGK34K3JE529050 Oshawa 2GTGK39J5J1564061

The same change took place for the K1 and K2 models with the start of the 1989 model production.

The old style crimped clamp required a stamped metal protector pressed onto the outer C/V joint housing around the clamp.

The new design swage damp has a smooth finish when installed and does not require a clamp protector.

Parts Information

The following kits contain the new swaged clamps:

K30 K10/20 --- ------- Seal Service Kit, Tripot 26018963 26018970 Seal Service Kit, C/V Joint 26018964 26018968 Joint Asm. Serv. Kit, Seal & CV 26018965 26018971 Spider Asm. Service Kit 26018966 26018972

Clamps Inboard Tripot Clamp 26007603 26007601 Outboard C/V Joint Clamps 26007602 26007601

Parts are currently available from GMSPO.

Service

When servicing any 1988 or 1989 K model truck front axle, use the instructions in the 1989 Light Duty Truck Unit Repair manual X-8937, Section 4C4, Pages 21 through 29.

Tool

The swage clamp installation tool is now a required tool and is included in your 1989 Essential Tool Order.

Tool Number Application ----------- ------------ J36652-1 K10/20 J36652-2 K30 (Outboard) J36652-3 K30 (Inboard)

For vehicles repaired under warranty use the following:

Axle Assembly, Drive - R & R

Right F1500 .5 Hr Left F1501 .5 Hr Both F1507 .8Hr

Add:

----- A. With Skid Plate .1 Hr

B. With Stabilizer .3 Hr

C. To R & R, Repack, Recondition or .3 Hr Replace Outer CV-Joint (Each)

D. To R & R, Repack, Recondition or .3 Hr Replace Inner CV-Joint (Each)

E. To Replace Shaft (Each) .5 Hr

F. To Replace Inner and/or Outer CV- .3 Hr Joint Seal (Each side)

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.