Yes, I am aware of a GM publication that lists option totals that uses letter codes to indicate models, but it has no cross reference between those letters and the models they represent, so in many cases, the totals include various models if the same option was available on them. Some of them may also be ECLs, but that is unclear.
ECL codes themselves corollate to a parts list for that option. For instance, an interior trim code option would have different ECL codes for door panels for crank windows vs power windows.
Verne
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05-03-2020, 04:17 PM
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