<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mr70</div><div class="ubbcode-body">Sometime between Jan./Feb.1970,and it was in effect @ ALL 7 Chevelle assembly plants.
Some other Chevrolet vehicles received this reverse bubble revision in their tail lights as well.
Impala & Trucks..
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Thank you for the info.