6L80e output
Thread Starter
Teching In
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6L80e output Does anyone know the output shaft stickout and bolt pattern of a 6l80e in a 2wd application with the tailshaft removed? The 4wd shaft sticks out 3 11/16". Is the tailshaft bolt pattern anything like a t400 or a 4L80e? How much of the shaft is splined?
I am trying to attach it to a NP205 transfer case. Advance Adapters makes a 4l80e to NP205 adapter that is for a 2wd 4l80e, they make nothing for a 6l80e. A 4l80e can also be adapted with a little machining on a factory turbo400 to 205 adapter, or there was also a factory 4l80e to late style 205 adapter. But is the back of a 6l80e the same as a 4l80e????
I am trying to attach it to a NP205 transfer case. Advance Adapters makes a 4l80e to NP205 adapter that is for a 2wd 4l80e, they make nothing for a 6l80e. A 4l80e can also be adapted with a little machining on a factory turbo400 to 205 adapter, or there was also a factory 4l80e to late style 205 adapter. But is the back of a 6l80e the same as a 4l80e????
Thread Starter
Teching In
Joined: Feb 2008
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Wow, that is very interesting. The 4l80e setup from AA uses a 2wd 4l80e with 6.5 inches of output shaft stickout, just like your picture. The np205 uses a 32 spline female input, to match a 4l80 and t400 output. That output shaft is splined all the way also, so it could be trimmed as needed. The 4l80e and t400 tailshaft housing is 6 bolt like your picture, but that 6l80e looks like a bigger bolt circle. Do you know the bolt circle? Is that output the same 32spline that matches a 4l80?
Edit: Actually, to use the Advance Adapter kit, you must cut the 4l80e output shaft to 4.5". The important part is that the shaft is fully splined.
Edit: Actually, to use the Advance Adapter kit, you must cut the 4l80e output shaft to 4.5". The important part is that the shaft is fully splined.
Last edited by onevoice; Dec 14, 2009 at 07:08 PM. Reason: Added info
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Joined: Jul 2005
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From: Beebe, Arkansas
The output on the 6l80 is 32 spline like the 4l8. I believe itsbigger the pattern is the same size as the round 6 bolt transfer cases side.
The 6l90 has a bigger 34 spline output.
EDIT: Just use a 4x4 6l80 and the stock round adapter to a round NP205. And you will need to add a VSS to the 205.
The 6l90 has a bigger 34 spline output.
EDIT: Just use a 4x4 6l80 and the stock round adapter to a round NP205. And you will need to add a VSS to the 205.
Last edited by Bo185; Dec 16, 2009 at 09:13 AM.
Thread Starter
Teching In
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Still can't seem to find any actual data on the 6l80e output and extension housing. A turbo 400 output is 32 spline by 1.365", with an extension housing bolt circle of approx 5 7/8 inch. Scaling the picture above, if the output shaft is the same diameter as a turbo 400 output, it looks like the 6l80e extension housing bolt circle is about 6.5". Can anyone confirm?
If it is simply a difference in extension housing bolt circles, I can make a relatively simple spacer and adjust the bolt circle to clock the transfer case for more ground clearance.
Anyone?
If it is simply a difference in extension housing bolt circles, I can make a relatively simple spacer and adjust the bolt circle to clock the transfer case for more ground clearance.
Anyone?
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