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Unread 12-08-2011, 04:34 PM   #1
k10silverado
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1977 FSJ Cherokee 
 
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Jeep Th400

Hey guys, i have a 1977 jeep cherokee and it is epuiped with a jeep th400.
Im aware of the jeep th400 has a 10 spline tail shaft. im wanting to upgrade from the quadratrac transfer case to a NP 205. Ive been told i would have to change out the tail shaft to do so because of the 10 spline shaft. But the np 205 that was mated to the gm 4 speeds has a 10 spline input. My question to you guys is will it work or can i make it work? Or is there another solution to get a np 205 behind my th400? Any help is appreciated!!! thanks guys

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Unread 12-09-2011, 08:30 AM   #2
CSP
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The tailhousing is different and I suspect the length of the output is also different.
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Unread 12-09-2011, 05:03 PM   #3
k10silverado
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thanks, do you know if they make a adapter for this setup. Ive searched but i haven't found one.
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Unread 12-10-2011, 05:08 AM   #4
sgtdave
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adapter

Advance adapter makes a kit to change over to a Dana 300/231/ 205/203 transfer case. The kit gives you a new output shaft 23/27 depending on what T case you want. They are all over $500.00 so it will be pricey.
I went with a TF727/D300 combo it was $350 with the T case this may be a better option for you The TF727 is a very strong trans being used behind most of the Mopar big blocks in the muscle car days. Just some food for thought.

Dave
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Unread 12-10-2011, 07:42 AM   #5
BJ's Off-Road
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Quote:
Originally Posted by sgtdave View Post
Advance adapter makes a kit to change over to a Dana 300/231/ 205/203 transfer case. The kit gives you a new output shaft 23/27 depending on what T case you want. They are all over $500.00 so it will be pricey.
I went with a TF727/D300 combo it was $350 with the T case this may be a better option for you The TF727 is a very strong trans being used behind most of the Mopar big blocks in the muscle car days. Just some food for thought.

Dave

Just for a note, if you have a 1980-1991 FSJ TF727, a Dana 300 will bolt up with no adapter.

Also, the TH400 was used behind GM big blocks as well. The TH400 and TF727 are very equal in strength, they will hold up to a lot of abuse.
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Unread 12-10-2011, 04:27 PM   #6
k10silverado
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Thanks for that helpful information. Im going to give it some thought.
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Unread 12-13-2011, 01:51 AM   #7
carnuck
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You won't need an adapter if you get a Chev TH400 with the right case already on it. (I see them for less than $200 on CL) Rebuild your old trans and put the Chev parts on the AMC case (or find one that needs rebuilding)
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Unread 12-18-2011, 03:09 PM   #8
Dngrs1
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Why not just install a part time kit into the QT?
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