NP 208

[BIG WILLIE]

Ok my 208 just went out. I only have 4LOW and it is like 10 - 20 miles away. right befor it went out i was cruzing down a hill at about 55 when it poped out of 2 high. (which it has been for a while and then i had no forword drive. Well i tried to put it into 4 high and that didnt work so i put it into 4 low and that did. Then i tried to put it into 2 high and take off again and it sat there and spunn and made a grinding noise does any one know what broke or what is wrong? Thanks Will Kosonen

[dnixon]

Are you SURE you have a 208 that sounds like you were driving around in 4hi since 2hi is a direct drive and has nothing to blow out unless you just detonated the case.. also 208's aren't for driving on the street you will toast them...

What year rig do you have and what engine do you have?

[BIG WILLIE]

I have a 1983 Jeep J10 with the 258 and a t176 and a 20 rear axle. Well it was stock from the factory with that 208 because i looked it up and i am sure of it. Oh and the other question i have is it the same bolt patern at the ford dodge or the chev because if i can i would like to get one that works for as cheep as i can

[ September 22, 2003, 07:13 PM: Message edited by: BIG WILLIE ]

[6foot4 again]

Look on the tag of the T-Case to verify, and there's also a neutral in the 208, and if it's in park, it'll grind, so your tranny'll have to be in neutral to engage without grinding any gears. Other than that, since you have a stick, I'm inclined to think it's a D20 t-case, not a 208. That's just me, and I've DEFINITELY been wrong before, so check that....

[Heimeken]

Sounds like a 208 to me. I got mine from a J10 with that same setup. Good thing is that there is lots of them around. I'd sell you my spare but.... it's my spare. Put an ad in the wanted section and you'll get a fast reply. They got used for about $150 and they are not hard to ship.

[BIG WILLIE]

i am 100% sure that it is a 208. The only question i have now is that is it the same bolt patern as the ford chev or dodge version? Because i can maby get one of them cheeper.

[6foot4 again]

Where r u at?

[BIG WILLIE]

Fort Bragg Cali. i think we have talked befor? maby idk though

[6foot4 again]

think so, you need a 208?

[BIG WILLIE]

well i dont know maby i need to pull it apart. I talked to my dad and grandfauther and they think it is the shift forks so i dont know but i will keep it in mind. Do u know which it would be Ford Dodge or Chev

[6foot4 again]

I have one from an '80 Jeep Cherokee 4-Door, from a 727 and 360, $100 you pick up. Sound alright?

[BIG WILLIE]

ya if i need it.

[6foot4 again]

ok, let me know, it's my spare at this time [img]smile.gif[/img]

[BIG WILLIE]

ok I will

[dnixon]

Originally posted by BIG WILLIE:
i am 100% sure that it is a 208. The only question i have now is that is it the same bolt patern as the ford chev or dodge version? Because i can maby get one of them cheeper.

They have the same circular bolt configuration and they will LOOK like they have the same bolt pattern but they don't the holes won't line up.

But I would take your case apart and check it out. I think you probably did some serious damage since you aren't supposed to drive the 208 on the street just in offroad situations.

If you did get a different makes T/C you would have to get a FORD since its a drivers side drop front axle and the chevy's are pass drop.
They also have different input splines from the trans. The jeep has 23 spline if i recall and the FORD has 31 splines. I also think that many of the 208's from ford and chevy's have slip yokes for the rear output which would also be another expense for you to swap that out.

Once its all said and done i think you would be better off just staying with the jeep 208. Just my opinion though. Good Luck... [img]smile.gif[/img]

[diver]

This my be a stupid question but why can't you drive a 208 on the street? Did they not come factory in street vehicles??

[BIG WILLIE]

oh mine did i know that because i looked it up in one of the manuals and i dont know why a ford t-case wouldnt work because it is a ford tranny and it will bolt to a ford bell housing. i know because when i rebult the motor three weeks ago i looked at it because i had a spair 302 housing sitting there and i tried it and it did work so i dont know but that is my thought on the subject.

[Cecil14]

First off yes you do have an NP208 as long as it's still the stock t-case. They stopped using the D20 around '79/80 ('79 was cutoff year but have heard of some 80's with them still).

If you can find an NP208 from a Ford with a 23 spline input it will work, and like you can take a ford case and put your input gear in it as long as it's still in good shape and bolt the ford case up. It probably will not "clock" right (it may sit up a bit higher or hang down a bit lower) but shouldn't be that big a deal.

Of course the ford case will probably have a slip yoke, which will not work with your driveshaft as it is. You may or may not be able to take parts from your case and make the ford one a fixed yoke, I have no idea.

On the next point the NP208 is a part-time transfer case meaning there is no slippage between the front and rear axles. This means that if you drive it no a high traction surface (pavement) the transfer case will likely try to bind up because the front and rear axles are rarely spinning EXACTLY the same speed. Now unless you drove it in 4wd for quite a while that probably is not an issue. As long as you're careful and don't make a lot of real sharp turns a 208 *will* survive on pavement. It won't like it but they are pretty sturdy cases and should probably be ok.

I would say pull it and rip it down, pay attention when you take it apart and you should be ok putting it back together. Label stuff if you need to. If you find it's non-repairable I think your best bet would be another Jeep 208. You should be able to get one fairly easily as they are pretty common.

Good luck, let us know if you have any other questions.
Anthony

[AMC258]

Originally posted by diver:
This my be a stupid question but why can't you drive a 208 on the street? Did they not come factory in street vehicles??

I'm pretty sure he meant that you can't use 4WD on the street, since it's a part time unit.

[BIG WILLIE]

Well i never did untell i had problems with it yesterday. i had to drive 25 miles in 4low because of there was no high gears.