'96 & on, most engines (4.3L, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, 7.4L etc.) except Metro, Tracker & 6.6L Duramax diesel
'99-on 4.3L, 4.8L, 5.3L, 5.7L, 6.0L, 6.2L require adapter A-107
Some Chevrolet models, such as (2500HD truck with 6.0L, Cavalier with 2.2L & 2.4L, Lumina with 3.1L & 3.8L, Impala with 3.4L & 3.8L, Venture with 3.4L) may not have enough space to install the valve. An adapter is available to clear the interference.
Some models have recessed drain plug port. If the valve touches the oil pan before fully tightened, DO NOT install the valve. Adapters are available for some models (EZ-104, EZ-106, and EZ-107).