SELECTIVE WASHER/NEW DESIGN 200C,2004R,325-4L TRANS.. Chevrolet Chevette 1981

For 1990-2009 cars

# SELECTIVE WASHER/NEW DESIGN 200C,2004R,325-4L TRANS.

This bulletin is being reissued to correct the implementation date of the new design selective washer from March, 1983 to June 17, 1983.

Beginning in late March, 1983, a new design selective washer went into production that is used on the following parts:

Turbine shaft to output shaft - THM 200C.

Forward clutch shaft to output shaft - THM 200-4R.

These parts are made from a different material and can be identified as shown in Figure 1.

When servicing any THM 200C and 200-4R or transmission that necessitates the replacement of the selective washer due to wear or damage, follow the service procedure on the following page.

#### SERVICE PROCEDURE

1. Inspect the two (2) shafts for wear or damage on the selective washer mating surfaces. If wear or damage is found, replace the shafts to prevent future wear.

2. Select the proper selective washer from the chart below:

SELECTIVE WASHER CHART (Front End Play)

#### Identification

Thickness (mm) Thickness (in.) Number Color P/N -------------- --------------- ------ ----- --- 1.66 - 1.77 0.065 - 0.070 1 ----------- 8639291

1.79 - 1.90 0.070 - 0.075 2 ----------- 8639292

1.92 - 2.03 0.076 - 0.080 3 Black 8639293 2.05 - 2.16 0.081 - 0.085 4 Light Green 8639294 2.18 - 2.29 0.086 - 0.090 5 Scarlet 8639295 2.31 - 2.42 0.091 - 0.095 6 Purple 8639296 2.44 - 2.55 0.096 - 0.100 7 Cocoa Brown 8639297 2.57 - 2.68 0.101 - 0.106 8 Orange 8639298 2.70 - 2.81 0.106 - 0.111 9 Yellow 8639299 2.83 - 2.94 0.111 - 0.116 10 Light Blue 8639300 2.96 - 3.07 0.117 - 0.121 11 Blue 8639301 3.09 - 3.20 0.122 - 0.126 12 ----------- 8639302 3.22 - 3.33 0.127 - 0.131 13 Pink 8639303

3.35 - 3.46 0.132 - 0.136 14 Green 8639304 3.48 - 3.59 0.137 - 0.141 15 Gray 8639305

3. Check the front end play to verify the proper washer selection, following procedures outlined in your service manual. Front end play should be 0.56mm - 1.30mm (0.022 - 0.051 in.).

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.