For 1990-2009 cars

# SPROCKET COVER BOLTS 325 TRANSMISSION

BEGINNING MID-AUGUST, 1981, ALL THM 325-4L TRANSMISSION SPROCKET COVERS WILL BE FASTENED TO THE UNIT WITH STANDARD SPROCKET COVER BOLTS (PART NO. 11503782). PREVIOUSLY, ALL 325-4L DIESEL MODEL TRANSMISSIONS WERE EQUIPPED WITH FIVE (5) STUD TYPE BOLTS (PART NO. 8635546) WHICH WERE SITUATED AROUND THE CASE COVER TO ACCOMODATE THE CHAIN COVER INSULATOR. THE 1982 SERVICE MANUAL SHOULD BE UPDATED WITH THE FOLLOWING MODIFICATION: 1.DELETE FIGURE 325-4L-208C "SPECIAL BOLT LOCATIONS" FROM PAGE 325-4L-54. 2.ON PAGE 325-4L-53 STEP 28 OF "THE OVERDRIVE CARRIER-INSPECTION AND DISASSEMBLY", DELETE THE COMPLETE SECOND SENTENCE. WHEN THE SPROCKET COVER IS REMOVED FROM ANY THM 325-4L WHICH IS BUILT WITH THE STUD TYPE BOLT USE THE STANDARD BOLTS DURING REASSEMBLY. IF THE STUD TYPE BOLT IS USED AND HANDLING DAMAGE OCCURS TO THE BOLT, A LEAK COULD RESULT.

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.