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4l60e to 4l80e

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Old 10-14-2018, 10:10 PM
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Default 4l60e to 4l80e

Just making sure I only need the brace, 4l80e transmission with different yolk, different harness, and a tune. it is in a 2008 silverado.
Old 10-15-2018, 04:30 AM
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You'll need a new torque converter and/or flexplate, depending on which bolt pattern you go with.

Everything else is accurate.
Old 10-17-2018, 07:35 AM
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thank you madman26 on the flex plate i have one of those custom one from circle d i got back a couple of years ago its that orange one will it work or will i steel need a new one?
Old 11-06-2018, 08:04 PM
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I kept my original 5.3 flexplate, just made sure my new circle D converter had the correct bolt spacing, didn't use a harness mechanic knew which wire to repin to ensure it read properly.
Old 12-21-2018, 05:21 PM
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so your saying i dont need a harness and all i need is a mount and a 4l80e with a tune



Originally Posted by killerkustoms
I kept my original 5.3 flexplate, just made sure my new circle D converter had the correct bolt spacing, didn't use a harness mechanic knew which wire to repin to ensure it read properly.
Old 12-21-2018, 09:07 PM
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If it was 4wd different input shaft I forget? I may be doing it if I buy a different truck. Thanks Jessie!
Old 12-21-2018, 09:23 PM
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Pretty sure it’s the output shaft that’s different.
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Old 12-22-2018, 12:44 AM
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Originally Posted by 08Silveradojp
so your saying i dont need a harness and all i need is a mount and a 4l80e with a tune
Correct if your ok with having your harness repinned and tech knows how to do it.. I'm sure there's post on what pin needs to be moved and vss plug. My mechanic knew this as I had a Nelson Performance harness but wasn't used.
Old 12-22-2018, 07:25 AM
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Originally Posted by killerkustoms
Correct if your ok with having your harness repinned and tech knows how to do it.. I'm sure there's post on what pin needs to be moved and vss plug. My mechanic knew this as I had a Nelson Performance harness but wasn't used.
Repinning the harness is stupid easy. You’ll be on the hook for the ISS sensor wiring for the front sensor, it’s stupid easy to. Just have a good pick set.

I bought the wiring harness because I was troubleshooting an issue that turned out to be a trans issue.
Old 12-31-2018, 10:14 PM
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Thank you fellas im just tired of changing this damn transmission out for 10 years on and off i love the truck and the motor but i cant ever get a transmission to hold up good ive spent thousands and im sick of it going out after a couple months.
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