AFTER MARKET OIL PAN GASKET THM 700-R4 SERVO OIL BLOCKED

MODELS: ALL MODELS WITH THM 700 R4 TRANSMISSION

It has been brought to our attention that an after market transmission gasket supplier has a dimensionally incorrect THM 700 R-4 oil pan gasket in circulation.

This gasket does not have a cut out for the servo exhaust hole in the oil pan rail.

When servo oil is blocked and cannot exhaust, shifting problems and/or failed clutches 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.