Is it possible (modern transmission to older transfer case)
Has anyone ever done this? say mating up a 4l60e or similar modern overdrive transmission to a np205 tcase? maybe even a np208? The reason i ask is if i plan to use a 5.3/6.0 vortec, i figure i might as well use an overdrive transmission since i plan on running stock 3/4 or 1 ton axles, meaning ill have about a 3.73 or 4.11 gear, and im planning on having the truck be a highway trailer puller/daily driver. Any help or points in the right direction would be appreciated, thanks guys.
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Re: Is it possible (modern transmission to older transfer case)
Give Advance Adapters a call, they have lots of adapters and can surely help you out.
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Re: Is it possible (modern transmission to older transfer case)
32 spline NP208 or pass drop NP241 should bolt directly up to any 4l60e / 4l80e or either manual 5 speed manual available in the newer trucks without any adapters :)
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Re: Is it possible (modern transmission to older transfer case)
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i like easy solutions to my ideas, gonna make funding it a heck of alot easier. :two: |
Re: Is it possible (modern transmission to older transfer case)
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They come in 27 spline and 32 spline variants. A 4L60E will be 27 spline and a 4L80E will be 32 spline. You can mate a 4L60E to a 205 by cutting the output shaft of the trans or making a spacer and using a Th350/205 adapter. |
Re: Is it possible (modern transmission to older transfer case)
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Re: Is it possible (modern transmission to older transfer case)
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4L80E is the more modern version of the Th400, which was used in the 3/4t and 1t trucks. You could also bolt it to a late model NP205 with all stock GM parts. |
Re: Is it possible (modern transmission to older transfer case)
Grendal, I am going to use the advance adapters 4L80e to 27 spline np 205 adapter. Were can I find info. on using a 4l80E to a late model 205 using all gm parts. Thanks
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Re: Is it possible (modern transmission to older transfer case)
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Use a round pattern 205 (86 and later, think) with the adapter and it bolts onto the 4L80E. |
Re: Is it possible (modern transmission to older transfer case)
Yes....... I went into cardiac arrest when I saw the price. I'll see if I can round one up, here in a couple weeks I'll be at that point in the project. Thanks again!
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Re: Is it possible (modern transmission to older transfer case)
It's been awhile since anybody has posted in this thread, but I was wandering if my late 80's model 205 off of a 400 turbo is a direct bolt on with the stock adapter to the 4L80?
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Re: Is it possible (modern transmission to older transfer case)
I don't know if it's a "direct" bolt in but I think that's the one that guys are looking for. I think that TC makes the swap easier.
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