2003 GMC C1500

2003 GMC C1500
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WILSON123
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Transmission problem
2003 GMC C1500 V8 Two Wheel Drive Automatic

How do I tell what model transmission I have in my truck?
VIN - 2GTEC19V331184330
Aug 6, 2009 at 7:15 PM
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BRIAN 1
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its an M30 - 4-SPD AUTO TRANS W/ OVERDRIVE AND ELECTRONIC CONTROL.which is a 4L60-E.
Aug 7, 2009 at 8:41 PM