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2006
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Sierra 2500 2WD V8-6.6L DSL Turbo
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Engine Controls - Aftermarket Calibration Identification
Engine Controls - Aftermarket Calibration Identification
This TSB number 08-06-04-006D, dated 08/04/09 has been superceded by TSB number 08-06-04-006L , dated 01/25/13