My dad had all kinds of these promo cars trucks back when he worked for Chevorlet. I remember getting my you know what whooped for taking a 63 split window corvett and blowing it apart with fire crackers just to see what it looked like. Sorry back to the Question, I have the same truck, my dad gave it to me when I bought my 71. Got the box everything with it from Chevorlet. (dad had 32 years with them) He was southeast Truck rep for GM when he retired.
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Andy
71's Are for ever!!! or 67,68,69,70,72
http://geocities.com/chevy71tpi/main.html