I recently aquired my Dad's old 2003 Grand Prix GT and I'm not sure which tranny it has (4T65E or 4T65-E HD). Is there a way for me to tell by the VIN number?
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I recently aquired my Dad's old 2003 Grand Prix GT and I'm not sure which tranny it has (4T65E or 4T65-E HD). Is there a way for me to tell by the VIN number?
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