3T2,3VA,3YN,3ML,3TC,3MB,3MC,3MJ, 8642996 3VN,3TE,3TH,3TK,3MD,3ME,3MK,3MW, 3VH,3MP,3MS,3T7,3YF,3YG,3PQ,3YP 3YK,3Y9 (REV 1/30/84) THESE SERVICE PACKAGES CONTAIN BOTH A NEW OIL PUMP COVER AND A NEW PUMP TO CASE GASKET. NOTICE: THE NEW PUMP TO CASE GASKET CANNOT BE USED WITH THE PAST OIL PUMP COVER. THE PAST PUMP TO CASE GASKET CAN BE USED WITH THE NEW OIL PUMP COVER, BUT WILL CONTINUE TO EXHAUST OUT THE BREATHER. REFER TO YOUR SERVICE MANUAL FOR DISASSEMBLY AND REASSEMBLY PROCEDURES
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.