EXPANSION OF 700R4 SERVICE REPLACEMENT TRANSMISSION

MODELS: 1982-1986 MODEL YEARS

The 700-R4 Service Replacement Transmission Assembly (SRTA) Program has been expanded. Effective November 18, 1985, most 1984 through 1986 model year applications have been added to existing 1982 and 1983 models. These additional SRTA models can be ordered from the local WDDGM Parts Distribution Center (PDC) using the same procedures currently in place for 1982 and 1983 models. Complete model coverage for 1982 through 1986 model years will become effective in early 1986. At that time, announcements relating to further expansion of the Program will be made via GMPD Bulletins and Parts Catalog updates from WDDGM. A listing of applications is provided in Figure No. 7 of this bulletin. Unit replacement through SRTA represents an additional method of service GMC Truck dealers can offer the customer in instances where major overhaul is necessary. Additional program details are provided in this bulletin as follows:

General Guidelines - Replacement or Overhaul

- Technician Training Courses

Cooler Flushing

SRTA Processing Procedures

SRTA Model Application Chart

GENERAL GUIDELINES

NOTE: For SRTA use in warranty/policy applications, refer to Dealer General Letter Number 370, dated July 27, 1984, for guidelines. In non-warranty/policy situations:

- Replacement or Overhaul

Parts needed to perform unit replacement or internal overhaul on a 700-R4 transmission are available through your local Parts Distribution Center (PDC).

- Transmission conditions which should be considered for SRTA usage:

- All repairs in which the projected cost to repair exceeds the cost of SRTA replacement.

- Indications that major internal repair is required.

- Dealer 700-R4 transmission repairs should include:

- All in-vehicle serviceable items.

- All internal repairs which are projected to cost less than a SRTA replacement.

- Available Technician Training Courses

There are two technical training courses offered by GM Product Service Training on the 700-R4 transmission for GMC service technicians. These courses feature theory of operation, overhaul, up-to-date service bulletin information in addition to extensive diagnosis information, and are available at the local GM Training Center.

Course # Length Title -------- ------ ----- 17001.11 2 Days 700-R4 Automatic Transmission

Description - Automatic transmission experience required. Course covers the construction, diagnosis, overhaul and adjustments of the transmission and converter clutch.

17201.11 1 Day 700-R4 Automatic Transmission Update

Description - For automatic transmission specialists. Previous 700-R4 training and experience required or course #17001.11. Includes all 700-R4 revisions affecting diagnosis and service with a workshop covering all service bulletin information issued to date.

Contact your GMC Zone Office or District Service Manager for schedule and enrollment of service technicians in these courses.

COOLER FLUSHING

IMPORTANT

Transmission oil cooler flushing should be performed whenever a transmission major overhaul or SRTA replacement occurs. It is ESSENTIAL to flush the cooler if fluid contamination is suspected or in any case of pump or torque converter replacement.

- SRTA PROCESSING PROCEDURES

Each SRTA unit will be shipped in a container that is to be reused for core return of the original 700-R4 assembly to the WDDGM Parts Distribution Center (PDC). A SRTA Information Packet envelope is included with shipment of each SRTA unit. The contents of the wire tagged envelope are to be removed and used as described with each illustration that follows.

- SRTA PROCESSING PROCEDURE - CORE EXCHANGE RETURN PROCEDURE

This provides detailed instructions for the GM dealer handling of the SRTA and original 700-R4 units. The sheet can be discarded after use.

- SRTA PROCESSING PROCEDURES - CUSTOMER WARRANTY INFORMATION ENVELOPE

Contains a courtesy letter, Limited Warranty Information, as well as Customer Information sheet (for feedback data) and pre-addressed return mailing envelope. A dealer representative is to explain contents of the envelope to the customer, provide a copy of the repair order for record purposes and return all six items to the customers after installation of the SRTA unit.

- SRTA PROCESSING PROCEDURES - FAILURE ANALYSIS INFORMATION SHEET

This double-sided report form is to be given to the dealer service manager and/or technician for data entry. Fill out the form as completely as possible to provide information which can be used for analysis purposes. This valuable input can result in future product refinements through corrective action. Insert the completed form and a copy of the repair order in the SRTA Information Packet envelope, reseal the envelope and wire tag it to the original transmission bellhousing being returned to WDDGM for core exchange.

- SRTA PROCESSING PROCEDURES - WDDGM INFORMATION CARD TAG

Completely fill out the dealer name, address, phone number and WDDGM parts code information on the WDDGM Information Card Tag. Then wire tag it to the original transmission bellhousing being returned for core exchange separately from the SRTA Information Packet envelope. This card will be utilized by WDDGM for core exchange credit and processing purposes.

- SRTA MODEL APPLICATION CHART AND PARTS ORDERING

SRTA coverage is available for 1982 through 1986 700-R4 models. The 700-R4 Transmission Identification Information Illustration (refer to Figure No. 6), and the Replacement Application Chart (refer to Figure No. 7), will assist in selecting the correct SRTA unit to order from the local WDDGM Parts Distribution Center (PDC).

SRTA Replacement Models for 1982 through 1986 model years that will be available early in 1986 are identified by an asterisk(*).

To use the chart below, find the original transmission model year and model number and use the corresponding SRTA model number. For example, if the original transmission model year is 1984, model 4PQ, use SRTA model number 6PL, Part Number 8659900.

Figure No. 7 - 700-R4 SRTA Transmission Reference Chart

SRTA PART ORIGINAL TRANSMISSION MODEL YEAR AND MODEL MODEL NUMBER 1982 1983 1984 1985 1986 ------------------------------------------------------------------------ 6PL 8659900 -- 3PQ 4PQ 5PQ 6PLM *6YX 8659901 -- 3YH 4YH 5YX 6YXM 4Y7 8659902 -- -- 4Y7 -- -- *4YF 8659965 -- 3YF 4YF -- -- *6YT 8649933 -- -- -- 5YT 6YTM 2Y4 8654911 9Y4-9YL -- -- -- -- 6YW 8659903 -- -- 4YG 5YZ 6YSM,6YWM,6YZM 6YP 8649940 -- -- 4YP 5YP 6YPM 3YP 8654935 -- 3YP -- -- -- 3YG 8654934 -- 3YG -- -- -- 6YF 8649942 -- -- 4Y8 5Y8 6YFM 6YL 8649936 -- -- 4Y6 5Y6 6YLM 6YK 8649934 -- -- 4YK 5YK 6YKM 3YK 8654936 -- 3YK -- -- -- 9Y3 8654910 9Y3-9YK -- -- -- -- 6YN 8659904 -- -- 4YN 5YN 6YNM 3YN 8654933 -- 3YN -- -- -- 6TS 8659905 -- -- 4TS 5TS 6TSM *6YC 8659906 -- 3Y9 4YA,4Y9,4YW 5YA,5YC,5YD 6YAM,6YCM,6YDM 2Y6 8659907 9YA-9Y6 -- -- -- -- 6TA 8649907 -- -- -- -- 6TAM 6TB 8649906 -- -- -- -- 6TBM 6FA 8649947 -- -- -- -- 6FAM 6MT 8649904 -- -- -- 5MT 6MTM 6MC 8649905 -- -- -- 5VC 6MCM *6PR 8649903 -- -- -- 5PR 6PRM 4VA 8659908 -- 3T2-3VA 4VA -- 5ML 8647929 -- 3ML 4ML 5ML -- *5MP 8659966 -- 3MP 4MP 5MP -- *5MS 8659967 -- 3MS 4MS 5MS -- 5T7 8647931 -- 3T7 4T7 5T7 -- *4MJ 8659909 -- -- 4MC-4MJ -- -- 3MJ 8654916 -- 3MJ -- -- -- 3MC 8654915 -- 3MC -- -- -- 9MC 8654906 9MC-9T6 -- -- -- -- 9MB 8654905 9MB-9TW -- -- -- -- *4MB 8659910 -- -- 4MB-4VN -- -- 3VN 8654917 -- 3VN -- -- -- 3MB 8654914 -- 3MB -- -- -- 2M2 8654957 -- -- 4TC -- -- 3TC 8654913 -- 3TC -- -- -- 9M2 8654900 9M2-9TC -- -- -- -- 6MX 8659911 -- -- -- 5MK-5VF 6MFM-6MXM 6MM 8659912 -- -- -- 5MM-5VG 6MAM-6MMM 5vK 8659913 -- -- -- 5VK -- 5VL 8659914 -- -- -- 5VL -- 6MR 8659915 -- -- -- 5VZ 6MRM 6TW 8659916 -- -- -- 5TW 6TWM 6TC 8659917 -- -- 4TG-4MR 5TG-5MR 6TCM-6TFM 6MD 8659918 -- -- 4MD,4MK,4VH 5MD,5MK,5VH 6MDM-6MKM 3VH 8654925 -- 3VH -- -- -- 3MK 8654923 -- 3MK -- -- -- 3MD 8654921 -- 3MD -- -- -- 9ME 8654908 9ME-9TE -- -- -- -- 9MD 8654907 9MD-9TJ -- -- -- -- 9M7 8654904 9M7-9T5 -- -- -- -- *6TJ 8659919 -- -- 4ME-4TE 5ME-5TE 6MPM-6TJM 3ME 8659920 -- 3ME-3TE -- -- -- 3TE 8654918 -- 3TE -- -- -- 6TD 8649901 -- -- 4TD 5TD 6TDM 6TK 8649921 -- -- 4TK-4TH 5TK-5TH 6TKM 3TK 8654920 -- 3TK -- -- -- 3TH 8654919 -- 3TH -- -- -- 9M4 8654901 9M4-9TH -- -- -- -- 9M5 8654902 9M5-9TK -- -- -- -- *6MW 8659921 -- -- 4MW 5MW 6MWM 3MW 8654924 -- 3MW -- -- -- 6MH 8659922 -- -- 4MH-4TL 5MH,5VJ,5TL 6MHM-6TNM 6MH 8654930 -- -- 4VJ -- -- *5MG 8659968 -- -- 4MG-4VE-4VX 5MG-5VE -- 3TL 8654932 -- 3TL -- -- -- 3VJ 8654931 -- 3VJ -- -- -- 3MH 8654930 -- 3MH -- -- -- 9MH 8654909 9MH-9TN -- -- -- -- 6TR 8649929 -- 3TP-3TS 4TZ-4T8 5TZ-5T8 6TRM 3T8 8654928 -- 3T8 -- -- -- 3TZ 8654927 -- 3TZ -- -- -- 9M6 8654903 9M6-9TP -- -- -- -- 5TM 8659923 -- -- 4TM 5TM --

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.