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2005
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Sierra 1500 2WD V6-4.3L VIN X
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Automatic Transmission - Fluid Cooler Flushing
Automatic Transmission - Fluid Cooler Flushing
This TSB number 02-07-30-052E, dated 02/22/08 has been superceded by TSB number 02-07-30-052H , dated 03/26/12