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INFORMATION ON GOODWRENCH TRANS. ASSEMBLY APPLICATIONS

SUBJECT: INFORMATION ON GOODWRENCH TRANSMISSION ASSEMBLY APPLICATIONS

MODELS: 1991-94 CHEVROLET AND GMC TRUCK C/K, P TRUCKS AND G VAN 1991 CHEVROLET AND GMC TRUCK R/V MODELS

TRANSMISSION APPLICATIONS: 1991-1994 HYDRA-MATIC 4L80-E/4L80-EHD

SERVICE INFORMATION:

THE 1992 HYDRA-MATIC 4L80-E/4L80-EHD GOODWRENCH TRANSMISSION PROGRAM BEGAN ON SEPTEMBER 1, 1991. GOODWRENCH TRANSMISSION MODELS CAN BE ORDERED FOR ALL 1991 THROUGH 1994 HYDRA-MATIC 4L80-E/4L80-EHD MODEL APPLICATIONS FROM YOUR LOCAL GENERAL MOTORS SERVICE PARTS OPERATION (GMSPO) DISTRIBUTION CENTER. THIS BULLETIN CONTAINS A LISTING OF THE GOODWRENCH TRANSMISSION MODELS AND PART NUMBERS CURRENTLY AVAILABLE TO SERVICE 1991 THROUGH 1994 HYDRA-MATIC 4L80-E/4L80-EHD TRANSMISSIONS.

GOODWRENCH TRANSMISSION ADVANTAGES: A GOODWRENCH TRANSMISSION IS THE PRODUCT OF A HIGHLY SUCCESSFUL, CUSTOMER SATISFACTION DRIVEN PROGRAM PROVIDING THE TECHNICIAN WITH A SERVICE ALTERNATIVE WHEN ADDRESSING DIAGNOSTIC AND OVERHAUL CONCERNS.

ALL GOODWRENCH TRANSMISSIONS ARE DESIGNED AND REMANUFACTURED TO CURRENT ENGINEERING SPECIFICATIONS AND ARE OFTEN LESS COSTLY THAN A MAJOR OVERHAUL.

GMSPO PARTS DISTRIBUTION CENTERS ARE COMMITTED TO 48 HOUR MAXIMUM DELIVERY TIME FOR ALL GOODWRENCH TRANSMISSION MODELS, WITH NO VIP CHARGES.

IN THE INTEREST OF CUSTOMER SATISFACTION, GOODWRENCH TRANSMISSIONS SHOULD BE CONSIDERED WHEN THE PROJECTED COST OF REPAIR EXCEEDS THE COST OF A GOODWRENCH TRANSMISSION ASSEMBLY.

COOLER FLUSHING MUST BE PERFORMED WHENEVER A TRANSMISSION/TRANSAXLE IS REMOVED FOR SERVICE. IT IS ESSENTIAL TO FLUSH THE COOLER BEFORE TRANSMISSION INSTALLATION, MAJOR OVERHAUL, IN ANY CASE OF PUMP OR TORQUE CONVERTER REPLACEMENT, OR WHEN FLUID CONTAMINATION IS SUSPECTED.

NOTE: 1994 4L80-E/4L80-EHD GOODWRENCH TRANSMISSIONS CANNOT BE USED TO SERVICE ANY 1993 OR PRIOR APPLICATIONS.

PARTS INFORMATION:

NOTE: GMC TRUCK DEALERS SHOULD REFER TO CORPORATE BULLETIN #367106, AUTOMATIC TRANSMISSION SERVICE PROCEDURE CHANGES PUBLISHED IN DECEMBER, 1993 FOR CORRECT SERVICE PROCEDURES ON REPAIRS UNDER WARRANTY.

4L80-E/4L80-EHD 1991 - 1993 GOODWRENCH TRANSMISSION RATIONALIZATION

4.3L APPLICATIONS

OEM 1993INT. GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1991 1992 1993 1993INT. REFERENCE

91AC 92AC 93AC 93AR 8685285 13ARP 8690942 K TRUCK 4WD 91AD 92AF 93AD 93AS 8685287 13ATP 8690944 G VAN SLIP YOKE 92AJ 93AF 93AT " " " " 91AB 92AB 93AB 93AP 8685288 13AXP 8690945 P TRUCK FIXED YOKE 92AH 93AH 93AX " " " "

5.7L APPLICATIONS

OEM 1993INT. GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1991 1992 1993 1993INT. REFERENCE

91BJ 92BJ 93BJ 8677173 13BJP 8683989 K TRUCK 4WD 91CK " " " K + V TRUCK 4WD 91BM 92BM 93BM 8677174 13BMP 8683990 P TRUCK 12-15K 91CR " " " " 91BN 92BN 8661751 12BNP 8687912 C TRUCK 12-15K 92BS 93BS 8682811 13BSP 8685939 C + P TRUCK 92MA 93MA 93HA 8685290 13HBP 8690947 G VAN FIXED YOKE 93MX 93HB " " " " 92MJ 93MJ 93HC 8685291 13HCP 8690948 C + G SLIP YOKE 92BU 93BU 93HD 8685292 13HDP 8690949 K TRUCK 4WD 92BY 93BY 93HF 8685293 13HFP 8690950 P TRUCK 12-15K 92BZ 93BZ 93HH 8685294 13HHP 8690951 C TRUCK 12-15K 92ML 93ML 93HJ 8685295 13HJP 8690952 G VAN + C TRUCK 91BA 92BA 93BA 8677170 13MBP 8683987 G VAN FIXED YOKE 91CA 92MB 93MB " " " G VAN,C,P,R TRUCK 91BB 92MK 93MC 8677172 13MCP 8683988 G VAN + C TRUCK 91CB 92MP " " " "

NOTE: PART NUMBERS ARE ACCURATE AT TIME OF PRINTING AND SUBJECT TO CHANGE. REFER TO THE LATEST GMSPO PARTS CATALOG FOR PART NUMBERS OF GOODWRENCH TRANSMISSION MODELS LISTED.

6.2L APPLICATIONS

OEM 1993INT. GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1991 1992 1993 1993INT. REFERENCE

91BJ 92BJ 93BJ 8677173 13BJP 8683989 K + V TRUCK 4WD 91CK " " " " 91BM 92BM 93BM 8677174 13BMP 8683990 P TRUCK 12-15K 91CR " " " " 92MA 93MA 93HA 8685290 13HBP 8690947 G VAN FIXED YOKE 93MX 93HB " " " " 92MJ 93MJ 93HC 8685291 13HCP 8690948 C + G SLIP YOKE 93PA 93KD 8685296 13KDP 8690953 G VAN FIXED YOKE 93PB 93KF 8685297 13KFP 8690954 C + G SLIP YOKE 93PC 93KH 8685298 13KHP 8690955 K TRUCK 4WD 93PD 93KJ 8685299 13KJP 8690956 P TRUCK 12-15K 91BA 92BA 93BA 8677170 13MBP 8683987 G VAN FIXED YOKE 91CA 92MB 93MB " " " G VAN,C,P,R TRUCK

6.5L APPLICATIONS

OEM 1993INT. GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1991 1992 1993 1993INT. REFERENCE

92LA 93LA 93KK 8685300 13KKP 8690957 C + P TRUCK 92LF 93LF 93KL 8685301 13KLP 8690958 K TRUCK 4WD 92LL 93LL 93KS 8685302 13KSP 8690959 C TRUCK 2WD

7.4L APPLICATIONS

OEM 1993INT. GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1991 1992 1993 1993INT. REFERENCE

91DD 92TS 93TX 93TB 8685304 13TSB 8690961 C + G SLIP YOKE 91DL 92DL 93DL 93TD 8685305 13TDP 8690962 K + V TRUCK 4WD 91DN 92DN 93DN 93TF 8685306 13TFP 8690963 P TRUCK 12-15K 91DR 92DR 93DR 93TH 8685307 13THP 8690964 C TRUCK 12-15K 91DP 92DP 93DP 93TK 8685308 13TKP 8690965 P TRUCK 15-16.6K 91DS 92HT 93DS 93TL 8685309 13TLP 8690966 C TRUCK 454SS 91DC 92DC 93DC 93TR 8685310 13TRP 8690967 C, P, R + G VAN 92MH 93TU 93TA " " " " 92TW 93TW " " " " 93MH " " " "

NOTE: PART NUMBERS ARE ACCURATE AT TIME OF PRINTING AND SUBJECT TO CHANGE. REFER TO THE LATEST GMSPO PARTS CATALOG FOR PART NUMBERS OF GOODWRENCH TRANSMISSION MODELS LISTED.

4L80-E/4L80-EHD 1994 GOODWRENCH TRANSMISSION RATIONALIZATION

4.3L APPLICATIONS

OEM 1994 GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1994 REFERENCE

94AC 8679034 14ACP 8688930 K TRUCK 4WD 94AD 8684493 14AFP 8688932 G VAN SLIP YOKE 3.73-5.13 94AF " " " " 94AB 8684127 14AHP 8688933 C + P TRUCK FIXED YOKE 94AH " " " "

5.7L APPLICATIONS

OEM 1994 GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1994 REFERENCE

94BJ 8679038 14BJP 8688936 K TRUCK 4WD 3.73-4.56 94BM 8679039 14BMP 8688937 P TRUCK 12-15K FIXED YOKE 94BN 8679040 14BNP 8688938 C TRUCK 12-15K FIXED YOKE 94MB 8679036 14MBP 8688950 C, P, G 8.6-10K FIXED YOKE 94MC 8679037 14MCP 8688951 C + G 8.6-10K SLIP YOKE 94MR 8684494 14MRP 8688952 P TRUCK 8.6-10K FIXED YOKE 94MT 8684496 14MTP 8688954 G VAN 8.6-10K SLIP YOKE

NOTE: PART NUMBERS ARE ACCURATE AT TIME OF PRINTING AND SUBJECT TO CHANGE. REFER TO THE LATEST GMSPO PARTS CATALOG FOR PART NUMBERS OF GOODWRENCH TRANSMISSION MODELS LISTED.

6.5L APPLICATIONS

OEM 1994 GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1994 REFERENCE

94AM 24201891 14AMP 24202017 L65 C TRUCK 12-15K 94LL " " " " 94BU 24201893 14BUP 24202019 L65/L56 K TRUCK 4WD 94LF " " " " 94BY 24201894 14BYP 24202020 L65 P TRUCK 12-15K W/JF9 94HA 24201895 14HAP 24202021 L65/L56/L57 C,P,G FIXED YOKE 94LA " " " " 94HB 24201896 14HBP 24202022 L65/L56 P TRUCK 12-15K 94HC 24201897 14HCP 24202023 L65/L56/L57 C + G SLIP YOKE 94LB " " " " 94HF 24201898 14HFP 24202024 L65 P TRUCK 15-16.5K NO PARK 94KS 24201899 14KSP 24202025 L56 C TRUCK 5.6-7.2K SLIP YOKE 94LY " " " " 94LH 8683612 14LHP 8688947 L65/L56 P TRUCK 12-15K GVW 94LU 8683614 14LUP 8688949 L65/L56 P TRUCK 15-16.5K GVW

7.4L APPLICATIONS

OEM 1994 GTA GTA DESCRIPTION MODEL OEM MODEL NUMBER 1994 REFERENCE

94DL 8679049 14DLP 8688940 K TRUCK 4WD 8.6-10K 94DN 8679050 14DNP 8688941 P TRUCK 12-15K FIXED YOKE 94DP 8679052 14DPP 8688942 P TRUCK 15-16.5K 94DR 8679051 14DRP 8688943 C TRUCK 12-15K 94MS 8684495 14MSP 8688953 P + G 8.6-10K FIXED YOKE 94TW 8679047 14TWP 8688957 C, P, G 8.6-10K 3.42-4.56 94TX 8679048 14TXP 8688958 C, P, G 8.6-10K 3.42-4.56

NOTE: PART NUMBERS ARE ACCURATE AT TIME OF PRINTING AND SUBJECT TO CHANGE. REFER TO THE LATEST GMSPO PARTS CATALOG FOR PART NUMBERS OF GOODWRENCH TRANSMISSION MODELS LISTED.

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

FIGURES: 0 ATTACHMENTS: 0

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.

COPYRIGHT 1994. GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.