Transmission Identification
4T60-E Transaxle ID And Unit Number Location:
4T60-E Transaxle ID Label.
The 4T60-E transmission has several variations of electronic control system types. Refer to transmission name plate for specific two letter model and third letter, transmission identification (W for 4T60-E) reference. The models can also be identified by refering to the Regular Production Option (RPO) label located on the compact spare tire well cover in the trunk.
Hydra-matic 4T60-E models used in 4.9L engines: ABW, AMW, ANW, APW, AVW, AWW, AYW, and AZW.