chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Automatic Transmission - Improper Operation|Page 2281 > < A/T - No Movement in Drive or 3rd Gear|Page 2276
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Clutch: Customer Interest
Automatic Transmission - Improper Operation

Number:

REISSUE 87-276-7A

Section:

7A

Date:

APRIL, 1988

Subject:

AUTOMATIC TRANSMISSION WEAR

Model and Year:

1985-87 SPRINT WITH AUTOMATIC TRANSMISSION

TO:

ALL CHEVROLET DEALERS

This bulletin is being revised to add additional information under the differential side and pinion gears worn heading. All copies of 87-276-7A dated
FEB., 1988 should be discarded.

Some Sprint vehicles may experience improper operation of the automatic transmission due to wear of the differential side and pinion gears and/or wear
of the direct clutch drum bushing.

Corrective action was incorporated in vehicles built after the following serial numbers (last 8 VIN characters):

For differential side and pinion gear wear.

HK740463 (2 Door) HK740416 (4 Door)

For direct clutch drum bushing wear.

HK746352 (2 Door) HK746297 (4 Door)

Vehicles exhibiting these conditions built before the above serial numbers, should be repaired using the following parts which can be obtained from
GMSPO.

DIFFERENTIAL SIDE AND PINION GEARS WORN

Replace worn/damaged parts as required, using new transmission case assembly, P/N 96057455 following shop manual procedures.
DIRECT CLUTCH DRUM BUSHING AND ASSOCIATED PARTS WORN/DAMAGED

Three different sets of replacement parts are available from GMSPO and the appropriate set should be ordered according to the extent of
repair/replacement required. The sets and contents are described as follows:

Pump Set, Oil

P/N 96057153

includes:

Oil Pump                     96057143
Ring, Oil Pump Cover Seal

96057149

Drum, Direct Clutch

96057146

Seat, Return Spring

96057147

Ring, Clutch Plate Snap

96057148

Washer, Direct Clutch

96057150

Washer, Direct Clutch

96057151

Cover Set, Oil

P/N 96057154

Pump 
includes:

Cover, Oil Pump

96057144

Ring, Oil Pump Cover Seal

96057149

Drum, Direct Clutch

96057146

Seat, Return Spring

96057147

Ring, Clutch Plate Snap

96057148

Washer, Direct Clutch

96057150

Washer, Direct Clutch

96057151

Cover Set, Direct P/N 96057155 

Multi Disc 
includes:

Cover, Oil Pump

96057144

Ring, Oil Pump Cover Seal

96057149

Automatic Transmission - Improper Operation|Page 2281 > < A/T - No Movement in Drive or 3rd Gear|Page 2276