FRONT DRIVE AXLE SEAL REPL. (SERVICE INFORMATION)

SUBJECT: FRONT DRIVE AXLE SEAL REPLACEMENT (SERVICE INFORMATION)

VEHICLES AFFECTED: 1988-1992 K1,K2,K3

The front drive axle removal and replacement procedures have been updated in the 1992 Sierra, Yukon, Suburban Service Manual (X-9231) Section 4C-6. These procedures apply to the removal and replacement of front drive axles for any 1988-92 K truck.

Important highlights of the Service Manual Updates include:

- Cleaning of the axle shaft grooves and proper location of the seal on the axle shaft grooves.

- Cleaning of all internal components and use of the premeasured grease packet.

- Proper inboard seal installation using the convolute retainer included in the seal kit.

- Proper inboard seal installation dimensions.

- Proper use of the swage clamp special tool i 36652.

SERVICE PARTS INFORMATION

Part Number Model Description ----------- ----- ----------- 26020732 1988-92 K1,K2 (7,200 GVWR) Seal Kit, C/V (Outer) 26018970 1988-92 K1,K2 (7,200 GVWR) Seal Kit, Tripot (Inner) 26020729 1988-92 K2 (8,600 GVWR),K3 Seal Kit, C/V (Outer) 26018963 1988-92 K2 (8,600 GVWR),K3 Seal Kit, Tripot (Inner)

Parts are currently available from CANSPO.

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.