WARNING: This page is about a different car, the 2002 Mazda 626 and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
The CD4E/LA4A-EL automatic transaxle is identified by identification tag located on rear of transaxle and bottom of main control cover assembly. See Fig 1 and Fig 2
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Fig 1: Identifying LA4A-EL Transaxle Assembly
Courtesy of FORD MOTOR CO.
Fig 2: Identifying LA4A-EL Transaxle Identification Tag