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2005 chevy trailblazer_ls
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Discussion Starter · #1 · (Edited)
I have been reading many threads about belt sizes. I have looked online and in both the owners manual and the Haynes manual. I cant seem to find which belt size I need for my 03 Envoy SLT XL 4.2. Anyone know? There are 2 options 130 and 150. I cant find the amp rating of my alt.
 

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2009 chevy
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You may have read many belt threads, but you were not reading any on this forum.

The alt size does not matter.

The long trucks use the short belt,
the short trucks use the long belt


Acid turns blue litmus red
base turns red litmus blue
 

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2005 chevy trailblazer_ls
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Discussion Starter · #3 ·
I appreciate the quick reply. All the threads I saw on this site had different people saying different sizes. Some said it depended on the alternator, some had info on TBs and I wasnt sure if it differed. Thanks for the easy answer though.
 
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