For 1990-2009 cars

# SERVICE PACKAGE MISSING PARTS 325 TRANSMISSION

#### VEHICLES AFFECTED: THOSE VEHICLES EQUIPPED WITH A THM 325-4L SOME THM 325-4L SERVICE CASE PACKAGES (PART NO. 8635901) MAY HAVE BEEN ASSEMBLED WITHOUT A PRESSUSE REGULATOR BUSHING SPRING PIN. SEE FIGURE 1. IF YOU RECEIVE A SERVICE CASE WITH THE PIN MISSING, YOU MUST INSTALL THE 5.6 X 2.85 MM BUSHING SPRING PIN, (PART NO. 9437415) INTO THE CASE PIN HOLE BEFORE USING THE CASE. THIS PIN WILL KEEP THE BUSHING FROM ROTATING OFF LOCATION. INSTALLATION PROCEDURE: 1.INSTALL THE PIN IN THE CASE PIN HOLE SO THAT IT IS FLUSH TO 0.3 MM BELOW THE FACE SURFACE. USE CARE TO NOT DAMAGE THE CASE FACE CHANNELS. 2.VISIBLY CHECK THE BUSHING BORE FOR BURRS OR CHIPS. CLEAN PRESSURE REGULATOR BORE BEFORE INSTALLING BUSHING. 3.WHEN INSTALLING THE BUSHING, MAKE SURE THAT THE FLAT AT THE END OF THE BUSHING LOCATES ALONG THE BUSHING PIN. THE ROUND OIL HOLE IN THE BUSHING MUST BE VISIBLE THROUGH THE CASE CHANNELS AFTER INSTALLATION, TO ASSURE PROPER LUBE FLOW. *ILLUSTRATION*

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.