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  #1  
Old 04-09-2013, 09:00 PM
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MMinMN MMinMN is offline
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A 401 Finally

Well it was a long search, but finally acquired a 401

The condition: Per the PO, was recently rebuilt(less than 20k) per PO.
The compression seams to confirm with an average of 185.

Price was very right, just had to drive to get it.

So, next step: I would love to go with a six speed(this is a 79 M/T Cherokee Chief).

So if I understand the to do's:
Need 80-88 FSJ front axle with Driver Side Drop;
Six speed trany and associated Xfer case

Moving Forward - ever so slowly



M
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Old 04-10-2013, 06:12 AM
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What 6 speed are you planning on running?
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Old 04-10-2013, 06:58 AM
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Quote:
Originally Posted by addicted
What 6 speed are you planning on running?

willing to look at any options,

right now I'm looking at the NSG370, but admittedly I haven't researched much yet.

Any suggestions are greatly appreciated.

In either case, it appears I will have to replace the front axle with a driver side drop from an 80-88

M
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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Old 04-10-2013, 07:05 AM
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You could run a Dana 300 behind the NSG although I think the trans will not be too happy if you plan to use the 401's power on a regular basis. The Dana 300 will allow you to keep your front axle. There is also the option of a Dodge NP208. It should bolt up without too much fuss either.
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i bet it was Simon....
he's such big meanie that way...
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  #5  
Old 04-10-2013, 08:02 AM
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Sweeeeet

401...awesome, sounds like a good combo with the 6 speed.
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  #6  
Old 04-10-2013, 09:41 AM
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MMinMN MMinMN is offline
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Quote:
Originally Posted by addicted
You could run a Dana 300 behind the NSG although I think the trans will not be too happy if you plan to use the 401's power on a regular basis. The Dana 300 will allow you to keep your front axle. There is also the option of a Dodge NP208. It should bolt up without too much fuss either.

Didn't know that you could marry anything other than what Novak has listed

Transfer Case Compatibility
The 370 was factory married to the NP231, NP241OR and NP241J transfer cases. It features the common Jeep / Dodge 6-bolt transfer case mounting face for driver's side drop transfer cases. The 23 spline output shaft makes it compatible
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #7  
Old 04-10-2013, 11:29 AM
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Congrats on the score! Hope you can get a good setup going, power and MPG at the same time sure would be nice
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  #8  
Old 04-10-2013, 02:30 PM
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Quote:
Originally Posted by MMinMN
Didn't know that you could marry anything other than what Novak has listed

Transfer Case Compatibility
The 370 was factory married to the NP231, NP241OR and NP241J transfer cases. It features the common Jeep / Dodge 6-bolt transfer case mounting face for driver's side drop transfer cases. The 23 spline output shaft makes it compatible

Yep, and those things make it possibly compatible with the D300 and Dodge NP208 due to the same pattern and spline count.
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i bet it was Simon....
he's such big meanie that way...
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  #9  
Old 04-10-2013, 03:17 PM
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Interesting, that means a few more options. What I'm reading suggests this tranny can hold up well as long as your not going crazy with it.


Quote:
Originally Posted by addicted
Yep, and those things make it possibly compatible with the D300 and Dodge NP208 due to the same pattern and spline count.
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #10  
Old 04-10-2013, 03:30 PM
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Quote:
Originally Posted by MMinMN
Interesting, that means a few more options. What I'm reading suggests this tranny can hold up well as long as your not going crazy with it.

Yes it will live if you aren't dumping the clutch at high rpms and your not flogging it regularly.

Depending on the input length of the t-case you are going with you might need a spacer or clocking ring. But the passenger output options I mentioned should be adaptable to that trans.
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i bet it was Simon....
he's such big meanie that way...
please don't tell him i said that....
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  #11  
Old 04-10-2013, 06:33 PM
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Great, thats alot of work avoidance - thanks


Quote:
Originally Posted by addicted
Yes it will live if you aren't dumping the clutch at high rpms and your not flogging it regularly.

Depending on the input length of the t-case you are going with you might need a spacer or clocking ring. But the passenger output options I mentioned should be adaptable to that trans.
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #12  
Old 04-10-2013, 07:09 PM
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Quote:
Yep, and those things make it possibly compatible with the D300 and Dodge NP208 due to the same pattern and spline count.

Yep, and all things being equal, I would pick a gear tcase over a chain,,,,any day of the week.

I really don't know how many folks here have trashed a tcase while wheeling...but gear driven cases are tougher... Now there is a clear dilineation between a case which came from the factory w/ a cummins or duramax in front of it.


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  #13  
Old 04-10-2013, 07:49 PM
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And there's he rub(no pun intended). I guy wants the capabilities of the six speed for the week day, and the the toughness of the T18 for the weekend, and it all has to fit behind a 401 if possible



sure no problem.



Quote:
Originally Posted by J20 project
Yep, and all things being equal, I would pick a gear tcase over a chain,,,,any day of the week.

I really don't know how many folks here have trashed a tcase while wheeling...but gear driven cases are tougher... Now there is a clear dilineation between a case which came from the factory w/ a cummins or duramax in front of it.


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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #14  
Old 04-11-2013, 11:02 AM
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Quote:
Originally Posted by MMinMN
And there's he rub(no pun intended). I guy wants the capabilities of the six speed for the week day, and the the toughness of the T18 for the weekend, and it all has to fit behind a 401 if possible



sure no problem.
Theres transmissions out there, but they are only 2wd it's really frustrating. If only you could use something like a t56.
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  #15  
Old 04-11-2013, 11:36 AM
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That is also an option. You can find a divorced NP205 or Dana 20(known as a Dana 24 I think Ford might be the only ones to use it though). Build a custom crossmember and mount it up. With that you can pull the t-case and run it in Rwd most of the time and put the case back in it for the weekends you can get out and go wheelin.
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i bet it was Simon....
he's such big meanie that way...
please don't tell him i said that....
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  #16  
Old 04-11-2013, 12:51 PM
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Quote:
Originally Posted by Jeepguy77
Theres transmissions out there, but they are only 2wd it's really frustrating. If only you could use something like a t56.

Would love it if Jeep/Chry would solve this one, I think many folks would go for new trannies while maintaining some originality in the engine bay.

Which also might translate into new vehicle sales
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #17  
Old 04-11-2013, 12:57 PM
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Z06

There is a Z06 C5 6spd on ebay, seams like that woiuld make a good candidate
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #18  
Old 04-11-2013, 02:01 PM
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I he has ~$3K he can go with a t56 from Rockland Standard Gear, they use a Corvett rear houseing and then a plate to mate it to a NP case.

Quote:
Originally Posted by Jeepguy77
Theres transmissions out there, but they are only 2wd it's really frustrating. If only you could use something like a t56.
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  #19  
Old 04-11-2013, 03:07 PM
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Does the NV5600 present any options, such as would the same adapters work as the 4500? or 3550?


Quote:
Originally Posted by mdill
I he has ~$3K he can go with a t56 from Rockland Standard Gear, they use a Corvett rear houseing and then a plate to mate it to a NP case.
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1979 Cherokee Chief W/T - M/T: Project
1987 Grand Wagoneer W/Excellent Interior: Project Donor
And the past:
1979 Bronze Cherokee Golden Eagle W/T - 360 A/T
1978 Charcoal Gray Cherokee Chief W/T - 401 A/T
1966 Navy Wagoneer w/Vigilante 327 M/T
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  #20  
Old 04-11-2013, 03:51 PM
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Great score on the 401.

I wanted an OD as well but decided to go a different route.

I was going to put highway friendly gears in the axles, keep the three speed tranny and go with a 4 speed transfer case instead.

I figure the 401 has the torque and power to work with three gears.
The 4 speed TC will work great with the highway gears.
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