On a 1970 GTO, what are all the locations of thr numbers that must match. ...Also, does every 1970 GTO have a 140 mph speedometer as standard equipment? Or are there exceptionts?
The first five digits of the VIN is the series. This must match the model number on the trim tag (70-XXXXX). There will also be a number stamped on the right side front of the block. This too must match the other two. The GTO was an option package for the LeMans so I believe they came with the 140 MPH speedo. Standard LeMans would have had the 120 MPH speedo. Contact Allied Vaughan with your VIN. For $50.00 you can get a copy of the original shipping invoice for your car. They have a website. It's gm media.com. HTH. -Jim
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