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Old 06-23-2019, 09:06 AM   #7
B_rad1969
 
Drives: 2013 2lt
Join Date: May 2014
Location: Indiana
Posts: 72
They aren't even listed... It's a big secret by Chevy. #1&2 if you look are both converters for different applications. Probably NA and ZL1.
Hope this link works.
https://www.gmpartscenter.net/auto-p...umber=84465354
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