View Full Version : TF727/NP203 and NP205
06-10-2003, 12:56 PM
Ok guys, so I need a heavy duty transfer case for my Jeep. I've decided that I would like to use a an NP203 or NP205 or better yet a doubler. However, I've found a reasonably priced TF727/NP203 combo from a Dodge, and know where I can get an NP205 for a TF727 from a Dodge. Does anyone know if I can bolt on the NP205 in place of the NP203 while I'm saving up for the doubler? Did they use the same adapter or different adapter and output? I know that I'll then have to get an AMC TF727 to match my AMC 360, but I'm sure I can find one.
06-10-2003, 01:30 PM
I know the GM version use different adaptors and trans output shafts between the 203 and 205. I have the GM NP205 and TH400 for my rig.
06-10-2003, 01:49 PM
you could also get a divorced 205
06-10-2003, 02:09 PM
There is one version of the Dodge NP203 with output shaft and adapter. There are at least 3 versions of the Dodge NP205 and probably more.
For the Dodge NP205 to bolt onto the 727 with the NP203, it would have to be a pre 79 model.
But, you can bolt any married NP205 to the Dodge NP203 with the doubler. 99.9% you will not find a 32 spline input version of the NP205 so you will have to change the input anyway to make it work.
With this setup, you will have a bulletproof drivetrain capabable of doing anything you want and doubling the number of gears you have which will be 12. Not bad at all.
06-10-2003, 02:34 PM
Did all 727's come with 23 spline outputs?
06-10-2003, 03:36 PM
Originally posted by TexasJ10:
Did all 727's come with 23 spline outputs?Nope, the ones I know are 23, 29, and 32 but I am sure there are earlier model spline counts. I am almost positive the Dodge NP203 did not have 23 splines but could be wrong. I know in 79 they went to 23 splines but I think they had something else before.
06-10-2003, 03:52 PM
Now you have me thinking again. I put a 32 spline input into the ford 205 i got from you so I could bolt it up to the NV4500. With a 32 spline output on the 727, the 205 might bolt up to the exisiting 727 adapter since the ford 205 had the new process round bolt pattern. I wonder what the stick out length is on the 32 spline output compared to the 23 spline.
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