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Longhorn Man · 02-27-2005, 07:15 PM

That's a GMC frame. I think the Z is for 1970?
The S is build plant.. St. Louis
And the rest is poduction number.

If I am off, Rod will correct me, he is the guru on GMC vins.

02-27-2005, 07:15 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	That's a GMC frame. I think the Z is for 1970? The S is build plant.. St. Louis And the rest is poduction number. If I am off, Rod will correct me, he is the guru on GMC vins.