4x4 4L80E to 2wd

Tuffregal83 · Apr 16, 2025

So I have a 4L80E coming out of 02 GMC K2500HD. I have owed the truck since new. I had the trans built a few years back and it has some cool sh*t done to it. My question is can I just change the tail shaft to a 2wd one.
I do have a TCI controller for the install.
I'll be ordering GForce cross member.
And I'll be measuring for a shorter driveshaft.

86LK · Apr 17, 2025

Can I convert 4wd 4l80e to 2wd? - LS1TECH - Camaro and Firebird Forum Discussion

Conversions & Swaps - Can I convert 4wd 4l80e to 2wd? - Hello, I am in the early planning stages of Converting a G-body to LSx Power. I would like to be able to run an Lq9 and 4L80E out of an Escalade. Is there a way to make the AWD trans work w/ a 2wd tailhousing? I would like to purchase a low...

ls1tech.com

nycutlass · Apr 17, 2025

Tuffregal83 said:
So I have a 4L80E coming out of 02 GMC K2500HD. I have owed the truck since new. I had the trans built a few years back and it has some cool sh*t done to it. My question is can I just change the tail shaft to a 2wd one.
I do have a TCI controller for the install.
I'll be ordering GForce cross member.
And I'll be measuring for a shorter driveshaft.

yes, but you have to change the plug in the back with one with a small orifice. the cup plug you have now is closed off because its 4x4

64nailhead · Apr 17, 2025

Need a tail shaft housing and different output shaft. And the plug with orifice as mentioned above

Tuffregal83 · Apr 18, 2025

Thanks for the info
Thought it would be easier by putting on a tail shaft then tearing it down to change the output shaft.

nycutlass · Apr 18, 2025

It is very easy lol if it takes you more than 1 hour your doing it wrong. to remove that cup plug in the back, is nothing to do you could even use a screw to take the old one out. And tap the new one in. Attached is a picture of the one you need for 2WD

mclellan83 · Apr 18, 2025

nycutlass said:
It is very easy lol if it takes you more than 1 hour your doing it wrong. to remove that cup plug in the back, is nothing to do you could even use a screw to take the old one out. And tap the new one in. Attached is a picture of the one you need for 2WD

Dam it I was hoping you guys were convincing him it was too much work so that he wouldn't want to do it and sell it to me to put into the Blazer 😂

Supercharged111 · Apr 18, 2025

nycutlass said:
It is very easy lol if it takes you more than 1 hour your doing it wrong. to remove that cup plug in the back, is nothing to do you could even use a screw to take the old one out. And tap the new one in. Attached is a picture of the one you need for 2WD

You can change an output shaft in under an hour? I went the other way myself, found a 2wd unit in the junkyard and converted to 4wd so rebuilt it while I was in there.

81cutlass · Apr 18, 2025

IMS Billet Short Shaft 4L80E Tail Housing Adapter

This GM 4L80E tail shaft adapter is designed to bolt to a short output 4wd transmission, allowing the use of a slip or fixed yoke on a 4wd transmission. This will shorten your drivetrain substantially vs a 2wd 4L80E case.

dirtyhookerdiesel.com

That lets you run a 4wd output shaft with a slip yoke.

Only issue is you need a way to run a VSS externally

nycutlass · Apr 18, 2025

Supercharged111 said:
You can change an output shaft in under an hour?

yes . i build th400 and 4L80E

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4x4 4L80E to 2wd

Tuffregal83

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86LK

Royal Smart Person

Can I convert 4wd 4l80e to 2wd? - LS1TECH - Camaro and Firebird Forum Discussion

nycutlass

G-Body Guru

64nailhead

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Tuffregal83

G-Body Guru

nycutlass

G-Body Guru

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mclellan83

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Supercharged111

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81cutlass

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IMS Billet Short Shaft 4L80E Tail Housing Adapter

nycutlass

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