NP 208J to AX-15

[colter@]

how has this setup been working so far im thinking about running the same thing?

 

[colter@]

which would you prefer if you had the choice? np 242, 231, 249, 207, or 208?

 

[go1lum]

Np231, Lots of aftermarket support. Plenty of parts in bone yards. Strong, Cheap, and effective.

 

[joe_peters]

which would you prefer if you had the choice? np 242, 231, 249, 207, or 208?

Your question is WAY to open-ended.

A person that wants Full Time 4x4 and doesn't care about upgrades would likely choose the NP242.

A person that doesn't care if there is only Part Time 4x4, wants to upgrade with wide chain and sprockets for strength, they will likely choose the NP231.

The NP207 was replaced by the NP231, can't think of a reason I would want one and they are noisy due to the type of cut used on the planetary gears.

The NP249 has a serious weak spot--its viscous coupling. The VC is the most often cited FAIL issue in the NP249, and that is why they end up replacing them with the NP231 or NP242.

NP208 has no SYE conversion, so it would be another step backward in my opinion. Here is some info on the NP208: http://www.high-impact.net/transmission_and_gear/Tcase_np208.htm

 

[RCP Phx]

which would you prefer if you had the choice? np 242, 231, 249, 207, or 208?

NP 241OR !!

 

[joe_peters]

NP 241OR !!

NP241 OR WHAT?

 

[dasbulliwagen]

NP208 has no SYE conversion, so it would be another step backward in my opinion. Here is some info on the NP208: http://www.high-impact.net/transmission_and_gear/Tcase_np208.htm

The 208 has no slip yoke conversion because it doesnt need it... its doesnt have slip yokes. As seen in the picture above, it comes factory that way, with no slip yokes.

 

[joe_peters]

The 208 has no slip yoke conversion because it doesnt need it... its doesnt have slip yokes. As seen in the picture above, it comes factory that way, with no slip yokes.

Congratulations--you got one of the exceptions to the rule. From the link I posted above (and you quoted without reading): "Most used a slip-yoke rear output. We are not aware of a Fixed yoke conversion for this case."

 

[colter@]

thats weird I have a dual fixed yoke 208 as well. but apparently they arnt common.

 

[colter@]

ok thats all very helpful and great information but it still didnt answer my question how well does this setup work? are there any benefits to running a 208 behind an ax 15? I have the dana 300 clocking ring and a rebuilt 208, if someday in the future I want to put a dana 300 in my vehicle will i need to change my axles from drivers side diff to passenger side diff?

 

[043500]

Every 208 I have ever seen in a jeep (that was facotry) has a fixed yoke. I myself have owned 2. Both had the double cardan front end and I put a front yoke on the rear output so it would also accept a double cardan joint.

All the others I have seen (ford, chebbie, dodge etc) all had slip yokes at the rear outputs.

SO another plus for the jeep 208.

It is a bit bigger than the 231/242 etc. BUT I know for fact it fits fine in a YJ with a 360/727 combo. I wish to hell I had kept that thing!!

The only drawback to the 208 is there's very little if any aftermarket for it. The only thing it could really use anyways is a lower gear...IE 4:1.

 

[colter@]

whats a double cardan? The klune-v offers an np 208 adaption with 4:1 gears.

 

[jester1341]

I know this is an OLD thread, but I was wondering if there was a way to use the fixed yoke off the 208 or if there is any reason for me to buy one. I found one on Craig'slist for a hundred bux.

Would I be better of looking for a 231c to upgrade my 231j??

John