INFO. ON NEW SPRAG AND FLANGE ASSEMBLY

REVISION: 08/16/94

THIS BULLETIN IS BEING REVISED TO REMOVE THE OLDSMOBILE AURORA FROM THE MODELS AND TO CLARIFY SERVICE INFORMATION.

REVISION: 09/09/94

THIS BULLETIN IS BEING REVISED TO CLARIFY SERVICE AND PART IDENTIFICATION INFORMATION. ----------------------------------------------------------------------

SUBJECT: NEW COAST CLUTCH HUB AND CLUTCH PLATE ASSEMBLIES

MODELS: 1994 CADILLAC ELDORADO, SEVILLE AND CONCOURS

TRANSAXLE APPLICATIONS: HYDRA-MATIC 4T80-E (RPO MH1)

STARTING MAY 21, 1994 (JULIAN DATE 4141) ALL HYDRA-MATIC 4T80-E TRANSAXLES WERE BUILT WITH A NEW HUB AND CLUTCH PLATE ASSEMBLIES FOR THE FORWARD/COAST CLUTCH. (FIGURE 1)

THE NEW COAST CLUTCH HUB HAS A 53 TOOTH DESIGN (PREVIOUS DESIGN HAD 51 TEETH) THAT REQUIRES TWO NEW COAST CLUTCH FIBER PLATES WITH A 53 TOOTH DESIGN.

WHEN SERVICING THE 4T80-E TRANSAXLES BUILT BEFORE MAY 21, 1994 THAT REQUIRE A NEW COAST CLUTCH HUB (719), A SPRAG AND FLANGE ASSEMBLY (24200461) MUST BE ORDERED TOGETHER WITH TWO (2) NEW COAST CLUTCH PLATE ASSEMBLIES (24200459). THE COAST CLUTCH HUB IS AVAILABLE ONLY AS PART OF THE SPRAG AND FLANGE ASSEMBLY WHICH CONSIST OF THE FOLLOWING PARTS: INTERNAL GEAR (708), INPUT INTERNAL GEAR FLANGE (725), SNAP RING (709), THRUST WASHER (713), FORWARD CLUTCH SPRAG ASSEMBLY (716), FORWARD SPRAG OUTER RACE (721), THRUST WASHER (720), COAST CLUTCH HUB (719), SNAP RING (717) AND THRUST BEARING (718).

IF THE ORIGINAL COAST CLUTCH HUB (719 / 8682229-51 TOOTH) CAN BE REUSED, THEN THE COAST CLUTCH FIBER PLATES (8677829-51 TOOTH) SUPPLIED IN THE OVERHAUL KIT MAY BE USED.

SERVICE PARTS INFORMATION:

PART NUMBER DESCRIPTION QTY. TOOTH QUANTITY

24200461 SPRAG & FLANGE ASSEMBLY 1 53 24200459 PLATE, COAST CLUTCH (814) 2 53 8684101 SPRAG & FLANGE ASSEMBLY 1 51 8677829 PLATE, COAST CLUTCH (814) 2 51

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

FIGURES: 1 ATTACHMENTS: 0

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