GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

What 4 speed auto is GM using...

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Old Oct 1, 2012 | 08:35 AM
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From: Gonzales
Default What 4 speed auto is GM using...

In the 2013 1/2 ton regular cab Chevy truck with a 4.8 V8 ? I just picked up one for a build up that I have been wanting to do for sometime. I have searched and have not came up with anything sold. I had a '07 with a 4L60 I think,and '12 6.2 truck had a 6L80. Any info would be great as I plan to swap in a built up 4L80 that should be good for up to 1000 rwhp.

Thanks, Chip Cross
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Old Oct 1, 2012 | 08:38 AM
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behind the 4.8 should be the 4L60E.
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Old Oct 1, 2012 | 10:05 AM
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Kinda what I was thinking or a 65E but I do not think it will hold up to a LSX454 and 24x15 wheels.
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Old Oct 1, 2012 | 11:12 AM
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I have a gauge for that
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Not even close.
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Old Oct 1, 2012 | 11:25 AM
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It might hold up to loading it on a trailer or moving it around the yard.. maybe..
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Old Oct 2, 2012 | 12:52 AM
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Known to fail carrying a ice chest. excessive loading according to gm and not covered under warranty.
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