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Automatic Transaxle Overhaul & Testing - 4T65-E: Identification: Notes

Transaxle has a metal identification plate or Service Replacement Transmission Assembly (SRTA) plate attached to rear face of transaxle. See Fig 1. Transaxle RPO codes are MN3, MN7 or M15. The MN3 and MN7 are heavy duty models and have 10.2" (258 mm) torque converters. The M15 model has a 9.6" (245 mm) torque converter. For model build information on each RPO code, see Fig 2, Fig 3 and Fig 4 .

Fig 1: Locating Transaxle ID Plate & SRTA Plate Information
G98I01961Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Model Build Information (MN3)
G00031957Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Model Build Information (MN7)
G00031958Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Model Build Information (M15)
G00031959Courtesy of GENERAL MOTORS CORP.