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Old 01-27-2011, 02:10 PM   #1
dukes69
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205 transfer case to 4L80E

Will a 205 bolt to a 4L80E? If not the 205 is behind a 4spd now, is there a special adaptor to work with a th400? I am thinking of building a 94-98 c2500 to 4wd using a 79 K20 as a donor (using the tranfer case and front end)
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Old 01-27-2011, 10:45 PM   #2
john@thepier
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Re: 205 transfer case to 4L80E

The best place I have seen for adapters is a place called ADVANCED ADAPTERS they sell many types of adapter and conversion kits. Good luck
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Old 01-27-2011, 11:29 PM   #3
1959 Apache
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Re: 205 transfer case to 4L80E

The 4L80E has the same output shaft splines and 6 bolt adapter pattern as a TH400. So if you can find an NP205 that was originally mated to a TH400, Then the adapter and input shaft will fit on the 4L80E.

Dave W.

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Old 01-29-2011, 03:44 PM   #4
Aegeas
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Re: 205 transfer case to 4L80E

Correct me if I'm wrong, but isn't the 4L80E longer than the TH400?
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Old 01-29-2011, 03:51 PM   #5
67swb72klb
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Re: 205 transfer case to 4L80E

1.5 inches move eng foward
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Old 01-29-2011, 05:22 PM   #6
1959 Apache
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Re: 205 transfer case to 4L80E

Quote:
Originally Posted by Aegeas View Post
Correct me if I'm wrong, but isn't the 4L80E longer than the TH400?
Yes it is, The 4L80E is 4 speed electronic version of the TH400 (3L80).

Dave W.
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Old 01-29-2011, 05:28 PM   #7
Aegeas
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Re: 205 transfer case to 4L80E

So to put a 4l80E in a 70-87 4x4 model you pretty much have to move the transfer case and transmission mount back about 1.5 inches plus buy the electronic transmission controller too. Seems like a pricey and difficult task to me.
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