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Discussion Starter #1
Been doing a lot of dreaming lately. Is it possible with a v8 swap in a 4x4 to also swap to the 6l80E? Has it ever been done, can it be done considering the stock t-case setup? have been searching this site a lot, i know a 6l80e has been put in these trucks behind different v8's but never found anything on the 6l80E on a 4x4.
 

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Should work I think big thing is it will only work if the truck is an 08 and newer
 

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Discussion Starter #3
Is it a difference in the wiring harness on the 08 and newer?
 

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Yes to wiring and Tcase won't bolt up at all. Need new front and rear driveshafts. Not worth the 6l90e hassle cause its a long pig.
 

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NW Surfrider
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Truthfully...I would skip the 4l80, and just get the 4l60 built up. The real advantage would be the 6l90 as it's a 6 speed. But thats a wholenother ball game.
 

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NW Surfrider
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I just re-read it. He put 6l80, I read 4l80. But yeah...it will still have the same issues of being too long.
 

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Won't be running a stock tcase then :shrug: not a lot of offroad support for the 6l80e for adapting tcases.
 

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Discussion Starter #10
Thanks for the info, I had an idea after lookin under the truck that the t-case would be specific to the 4l60 but thought i'd ask people who are more knowledgeable than myself to make sure :) the 4l60 can still be modified to handle more power though yes?
 

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Boosted V8
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absolutely it can....but what are your plans for the motor? unless your going forced induction the 4l60e will handle almost everything you throw at it.
 

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Boosted V8
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W/ a stock v8 that 4l60 will handle almost anything you throw at it. Unless he plans on neutral dropping everyday. I dunno about the 4x4. But i have almost double the power as my stock v8 with no torque management and my trans is doing great.
 

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Should be doable. The TBSS guys are starting to do the 6L80E more and more. Before buying my truck I was researching swapping in a T56, but while searching came across a lot of info on the six speed auto swaps. I emailed back and forth with a guy out of Arizona who has specialized in these TBSS swaps. He seemed to think the Colorado swap would be straight forward.

I don't have the link handy, but he has done TBSSs, and a Jeep Wrangler with a 6.2 L92 and six speed auto (4x4).

Get a whole wrecked Silverado and go to town!
 

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Discussion Starter #18
I have heard that the 4l60 can be modded to handle a decent amount of power. I'd love to have more power than the i5 and, myself like many others had considered going turbo but after research i don't think building a boosted i5 would really be worth it. My dream is building a 4.8L to handle a magnacharger s/c. I think that would be a badass setup in a 4x4 with 4.10s & 32s or 33s. plus I'd like to have some towing power and not sacrifice too much efficiency.
 

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Just because you have more power doesn't mean you can tow more. If you can't stop it there is no point.
 
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