FRONT AXLE FLUID LEAK THROUGH REMOTE VENT
Some owners of 1988 K trucks may comment on front axle leaks through the remote axle vent. A new front axle vent plug assembly, part number 26015413, will be used in 1989 K models. The new vent plug assembly has a "weather vane" inside to prevent direct flow of axle fluid into the vent. The new part can be installed on 1988 K models to correct front axle leaks through the remote vent.
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.