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Automatic Transmission Servicing: Identification: Transaxle

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 MN7 or M15. The MN7 is a heavy duty model and has a 10.2" (258 mm) torque converter.

Fig 1: Locating Transaxle ID Plate & SRTA Plate Information
G98I01961Courtesy of GENERAL MOTORS CORP.