NP435 2wd vs 4wd
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Cargo Master
Joined: Oct 2010
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From: Lost In a Pit of Despair
NP435 2wd vs 4wd
I did a little research, but can't seem to find a straight answer anywhere 
I've got 76 highboy. 205 divorced case. Blown NP435. I have a lead on a np435 out of a 2wd truck in good working order.
Will a 4wd tailshaft housing (with the tcase shifter attachment on it) and yolk swap directly over to a 2wd transmission? If so, and assuming spline counts are the same, can I just stick it in?
Thanks in advance
Jameson
I've got 76 highboy. 205 divorced case. Blown NP435. I have a lead on a np435 out of a 2wd truck in good working order.
Will a 4wd tailshaft housing (with the tcase shifter attachment on it) and yolk swap directly over to a 2wd transmission? If so, and assuming spline counts are the same, can I just stick it in?
Thanks in advance
Jameson
Last edited by jgavac; Dec 29, 2013 at 01:34 AM. Reason: re-word
Save the old ones
Joined: Dec 2002
Posts: 666
Likes: 4
From: Boyne Mich
I had a 76 250 hi boy divorced t-case with a C6 and the yoke was not a slip on yoke. It had a large nut inside the yoke. So I'm thinking your hi boy 435 does also. The 2wd 435 should have a slip on yoke. So you'll have to swap tail shafts.
I took a 435 for a 2wd (slip on yoke) and swapped the tail shaft and tail shaft housing to switch it over for a 4wd married t-case. The housing is obviously very simple to swap out, but the tail shaft has to go out through the front of the case. Yep gut it. Sounds like a pain in the ***, but it's really pretty easy. These NP435's can be rebuilt for like $150-$200 if the gears are good. If you can get the 2wd version cheap, buy the rebuild kit and put one together. I can't believe they get $750 for a rebuilt NP435.
I took a 435 for a 2wd (slip on yoke) and swapped the tail shaft and tail shaft housing to switch it over for a 4wd married t-case. The housing is obviously very simple to swap out, but the tail shaft has to go out through the front of the case. Yep gut it. Sounds like a pain in the ***, but it's really pretty easy. These NP435's can be rebuilt for like $150-$200 if the gears are good. If you can get the 2wd version cheap, buy the rebuild kit and put one together. I can't believe they get $750 for a rebuilt NP435.
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Cargo Master
Joined: Oct 2010
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From: Lost In a Pit of Despair
Shifter forks are all in good working order
Posting Guru
Joined: Oct 2006
Posts: 1,360
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From: nunya
I have seen many 2wd trans with the output shaft threaded. and wouldnt a 2wd longbed with a center support bearing have a bolt on yoke? My C6 2wd has a bolt on yoke. So I do believe that a 2wd trans will work for you. If you find one with a slip yoke, slide it off and see if the end is threaded.
Senior User
Joined: Oct 2012
Posts: 422
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From: Arlington
Jameson, I will check the spline count on the 2wd trans
Are we talking spline count for the yolk? if we are, just use the 2wd yolk if the splines are different
Are we talking spline count for the yolk? if we are, just use the 2wd yolk if the splines are different
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Posting Guru
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From: nunya
If you have a 2wd trans with a bolt on yoke, use it....DONE. If they have different sized u-joints,get a conversion joint...then DONE!
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Cargo Master
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From: Lost In a Pit of Despair
Thanks
Jameson
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