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post #1 of (permalink) Old 12-21-2000, 10:39 PM
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np 208\'s???

what's the input shaft spline count of a np208 x-case? i currently run a dana300 and was wondering if the chevy,dodge, or even jeep np208 would bolt where a dana300 went. any np208 guru's out there?

brian wilson
80 cj5 "high 5"
stretched to 100" wb
efi351w/np435/d300/d44/d60/detroits/4.56/35tsl's/
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post #2 of (permalink) Old 12-22-2000, 07:50 AM
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Re: np 208\'s???

Why on this earth would you want to go from a D300 to a NP208? For wheeling I doubt it'd hold well. My younger brother grenaded one in his Chevy, got smart and found a SM465/NP205 set like CJDave's (he was running a SM465/NP208 setup). The NP208 also has the slip splines in the transfer, like the NP231's. I'm sure you have an alterior motive, just not sure of what it is. If you need a D300, I have a few jeep ones laying around.

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post #3 of (permalink) Old 12-22-2000, 08:38 AM
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Re: np 208\'s???

jeepn, tom elliston of sunray engineering (they make the ford9"/dana60 hybrid frontends) says the 208's are stronger than a dana 300. their week point is their aluminum case but a good skid plate will take care of that.he and most of the guys he runs with run hopped up v8's and they are not afraid of the skinny pedal. they had bad luck with the 300's because they broke tail shafts. have you ever held a d300 tailshaft up to a np208's? the 208's is noticeably larger. the 208 has a fixed yoke not a slip yoke like the np231's. i don't need a dana 300 because the short shaft 300 i have in my jeep is fine and i have another short shaft in the garage. i'm just thinking long run. i probably won't change now but i' just getting ideas incase i ever do break.

brian wilson
80 cj5 "high 5"
stretched to 100" wb
efi351w/np435/d300/d44/d60/detroits/4.56/35tsl's/
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post #4 of (permalink) Old 12-22-2000, 09:41 AM
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Re: np 208\'s???

Huh, all the NP208's I have seen have the slip yoke, but they were on Chevy trucks. The NP208 has a small chain inside it, much smaller than the NP203, and it's prone to stretching under heavy use. I can understand the tail cone, heard about those but never had a problem with mine. I can also relate to the light weight, but I have a hard time believeing the NP208 is a worthy case for off-roading, unless it's in a Willys or another light weight vehicle. Fairly common transfer, so it should be cheap, but wasn't it replaced with the NP241 in the late 80's, which was a stronger and better transfer?

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post #5 of (permalink) Old 12-22-2000, 09:49 AM
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Re: np 208\'s???

i'm just going off what tom says. he builds jeeps for a living and wheels hard so i take his word for it. i just looked a a np208 in a j-yard yesterday that had a fixed yoke on it. i don't know what it was out of though. i'm just trying to find out more info on them. tom is actually the second person i have heard this from but i dissmissed the first person. i just want to know if any of the 208's will bolt up where a dana300 has been. i guess i could give him a call but i thought maybe someone here might know.

brian wilson
80 cj5 "high 5"
stretched to 100" wb
efi351w/np435/d300/d44/d60/detroits/4.56/35tsl's/
post #6 of (permalink) Old 12-22-2000, 09:52 AM
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Re: np 208\'s???

also yes i know the 203 and 205 are stronger cases but they have a sorry low range ratio. the dana300 couldn't live in a full size so maybe the 208 can do fine in a jeep. thanks for the input.

brian wilson
80 cj5 "high 5"
stretched to 100" wb
efi351w/np435/d300/d44/d60/detroits/4.56/35tsl's/
post #7 of (permalink) Old 12-22-2000, 11:27 AM
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Re: np 208\'s???

Brian.
Dont take my word for it, but I think the dodge ones are the ones with the fixed yoke.I havent seen a chevy 208 with anything other than a slip yoke...As far as splines, I dont have a clue..I knew if I sat and thought about it some more I could remember why I was telling you about the dodge the other day!!

post #8 of (permalink) Old 12-22-2000, 11:45 AM
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Re: np 208\'s???

No problem, I'm curious so hear if they mate up as well. I'll have to look more into the yokes, years, and setups. Never really wanted to learn much about them, 'cause I never knew there was a need for them. You're absolutely right about the gear ratio though, it does suck in comparison. Who knows, maybe you can get a "superchain" as well, that won't stretch.

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post #9 of (permalink) Old 12-22-2000, 01:08 PM
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Re: np 208\'s???

I have a 208j in my j10-It's a fixed yoke. The thing is, it's a driver's drop case. The 300 in a jeep is passenger drop, right? maybe swap the tail from a 208j to a208 chevy or dodge? brendan

post #10 of (permalink) Old 12-22-2000, 05:44 PM
 
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Re: np 208\'s???

Fullsized Jeep 208s hade a fixed rear yoke, and 23 spline input like a dana 300.

the Fords ( I think its Ford models) some are or might be 21 spline. so of course they wont work on a dana 300 application.

they are strong as hell, dont let anyone tell you they arent.
I had one in a fullsized Cherokee ( thats a half ton truck) with a strong 360, 33 inch tires, and Me.

it would lift the front tires in low range off of a speed bump, I used to mess with kids in 5/0 mustangs at redlights, low range would get me out in front until I ratcheted into Nuetral.

I never had a single problem execpt a small leak on teh rear output, it wasnt bad just a drip, otherwise it was a very stout case.

towed alot of things in 4lo, climbed alot of stuff, I learned to drive in that truck, it wasnt babied at all.



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