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5.3 4L60 transmission compatibility

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Old Jul 22, 2023 | 03:34 PM
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Default 5.3 4L60 transmission compatibility

2003 suburban 1500LS transmission compatibility with a 2009 1500 Silverado??
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Old Jul 23, 2023 | 10:50 PM
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Originally Posted by Jaimelynn
2003 suburban 1500LS transmission compatibility with a 2009 1500 Silverado??
2009 is the start for the internal mode switch and deletion of the 3-2 downshift solenoid. So it would not be compatible. I've tried to put a 2008 into a 2009 a few years back and it was a no go because of the differences.
2000-2008 will interchange. You can put an ISS unit in a non ISS vehicle but you can't put an non ISS transmission into an ISS vehicle without additional tuning...
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Old Jul 24, 2023 | 07:50 AM
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Thank you so much!

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