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3.91 Dealer Install
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09-24-2013, 01:31 PM
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wakespeak
Drives: 2020 ZL1 1LE
Join Date: Sep 2012
Location: Austin, Texas
Posts: 1,377
Thanks..just wondering if they are now updating the computer for the ratio change. Earlier posts indicated that GM was delayed in getting an updated program. Initial discussion with my dealer indicated they had never done one yet and were not sure.
wakespeak
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