TRANS OIL EXHAUSTING OUT 700R4 GASKET INFORMATION

Model and Year 1983-84 "S/T" 10 AND "C/K/G" 10-20 SERIES TRUCKS, CAMARO, CORVETTE, CAPRICE AND CAPRICE WAGONS

This cancels and replaces Chevrolet Dealer Service Bulletin 84-61 dated February, 1984. Previous copies should be destroyed. This new issue corrects model designations printed in error on the previous copy.

Beginning July 15, 1983 (Julian Date 169), all 700-R4 transmissions were produced using a new oil pump cover (Figure 1) and a new pump to case gasket (Figure 2), that prevents transmission oil from exhausting out the breather during harsh deceleration during sharp turns.

When servicing any 1983 or 1984 THM 700-R4 transmissions for transmission oil pump cover and pump to case gasket, use the service packages listed below:

ORDER SERVICE MODELS PACKAGE NUMBER ------- ---------------

3TS, 3TZ, 3T8, 3TP, 8642995 3MH, 3VJ, 3TL, 3YH

3T2, 3VA, 3YN, 3ML, 8642996 3TC, 3MB, 3MC, 3MJ, 3VN, 3TE, 3TH, 3TK, 3MD, 3ME, 3MK, 3MW, 3VH, 3MP, 3MS, 3T7, 3YF, 3YG, 3PQ, 3YP, 3YK, 3Y9

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 oil 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.