The truck years scroller at ChevyDuty explain the differences pretty good
http://www.chevyduty.com/frame-truck-years.html
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Tim
We have two rules here at the Rock.
Rule #1: No writing on the walls.
Rule#2: Obey all rules
70 GMC Sierra Grande "Custom Camper" Longhorn 402 Big Block TH400 PS PB factory AC Posi ;
94 Bronco XLT 302, auto;worn out daily driver
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