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Old 05-26-2004, 06:36 AM   #1 (permalink)
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Question NP203 vs. NP208 ?

Hi there fellow 4wheelers. I come to you with a question I've been trying to find some help on answering. I have a '82 Silverado with the NP208 transfer case. I have had no problems with it, yet. I have to replace the transmission this weekend. Here's the problem. The truck originally had a 700/208 combo. Now it has a 350/208 combo. The 350 has the 2wd output shaft and an aluminum adapter to keep the original length correct so the driveshaft will fit still. I have another combo I just got yesterday out of my parts Blazer. It is a 350/203 combo. The 203 has a part-time conversion inside, although I am not sure which kit it is. Instead of tearing the trans down <which I'm perfectly capable of> and changing the output shaft, I could slide the 350/203 combo in and just change my rear driveshaft. I ask you guys which you would do in my case. And please, no 205 comments as I've been trying to find one but nobody has one cheap around here, so I'm stuck with the 208 or 203..I don't do alot of hardcore wheeling. Every now and then I do hit the mud and sandpits and do occasionally pull soneone out or down the road. I guess I could be classified as a Weekend Wheeler..Any ideas or suggestions are greatly appreciated! Have a good day!

Chuck
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Old 05-26-2004, 07:43 AM   #2 (permalink)
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203

Go with the 203 and you will already be set to do a doubler down the line, the 203 is much stronger, I have gone through 3 208 until I switched to the 203 and now I am waiting for the funds to do a doubler
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Old 05-26-2004, 08:01 AM   #3 (permalink)
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Talking Cool

Cool beans, I thank you 55. I do still have to find a driveshaft still; I actually have one but it's a bit longer and I may have to shorten it, but I'll ride on the front end for a few days since I won't be going but a few miles a day. Will the front driveshaft bolt up like normal? I do have the one from the 203 anyways, so I guess it don't matter. Finding driveshafts around here sucks too; actually there are ppl but they won't come off them haha.

Chuck
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Old 05-26-2004, 08:13 AM   #4 (permalink)
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So does this mean you have a 208 you may be getting rid of? I'm swapping chevy goods into a scout and want to keep drive angles low, so the smaller 208 is what I prefer. Shoot me a good deal... and I'll take care of shipping.
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Old 05-26-2004, 09:19 AM   #5 (permalink)
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Quote:
Originally Posted by dieselpower1980
Cool beans, I thank you 55. I do still have to find a driveshaft still; I actually have one but it's a bit longer and I may have to shorten it, but I'll ride on the front end for a few days since I won't be going but a few miles a day. Will the front driveshaft bolt up like normal? I do have the one from the 203 anyways, so I guess it don't matter. Finding driveshafts around here sucks too; actually there are ppl but they won't come off them haha.

Chuck

Well here's another thought.
Here every one will steer you in the extreme way, if you noticed they suggested the doubler down the road.
The 208 is a strong unit and for what you want, it's more than enough.
If you don't need to change driveshafts with the 208 I would go with it.
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Old 05-26-2004, 09:29 AM   #6 (permalink)
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Talking Ok guys..

First off, Iceman, thanks for the suggestion. I definitely wanted to keep the 208 for the low gearing, but I just don't want to have to tear into the tranny to change the output shaft. Although I can do it, just figured to save time AND have a stronger case..Humm, hoping I will have this all figured out by Friday b/c that's when I'd like to start on it.

Scout_on_38s : I will definitely shoot you a good deal, either that or just make a decent offer; however, everything depends on what I finally do on Friday, but if I go with the 203 I will get back with you most definitely!

Chuck
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Old 05-27-2004, 10:13 AM   #7 (permalink)
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Sounds great, just let me know.
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Old 05-27-2004, 10:20 AM   #8 (permalink)
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I'd stay with the 208 also. I have run one in my truck for a couple years now, and I run the shit out of it. Its in a light vehicle, but it hasn't missed a beat yet. The low range is great in it too compared to the 203, and with the gears and tires your running that low range will really help you.
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Old 05-27-2004, 11:09 AM   #9 (permalink)
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Talking Thanks ya'll

I guess I'm going to go ahead with the 208 since I won't need to change my driveshafts. Although I didn't wanna go into the transmission, I guess I can check the condition of the clutches while I'm in there. I reckon I'll just keep the 203 as a backup just incase. It's funny how much trash I hear being talked about the NP208, however, even though it's behind a diesel engine, it has held up very well. Even after pulling a partially loaded dumptruck out of the sand hill near here. I reckon the worse thing for a 208 is either mis-matched gears and hitting the case on something, either of which can result in a cracked case. Since I don't live near rocks I ain't worried too much. I thank you all for the replies and any more that may come after this!

Chuck
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Old 05-27-2004, 02:52 PM   #10 (permalink)
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Consider this...the new Dodge and Ford diesel trucks use aluminum chain driven transfer cases like your 208 (241s?)...and those cases last behind the 600 ft. lb. Coomins motors....
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Old 05-27-2004, 03:49 PM   #11 (permalink)
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Talking yes

Quote:
Originally Posted by ken
Consider this...the new Dodge and Ford diesel trucks use aluminum chain driven transfer cases like your 208 (241s?)...and those cases last behind the 600 ft. lb. Coomins motors....

Yes, this is true. I should have thought of that, would have been a sense of comfort The 241's are "supposedly" stronger than the 208's, but like I had said before, it's working fine in mine, so.....Thanks

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Old 05-27-2004, 07:04 PM   #12 (permalink)
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i hate 208's, it's embarrassing on what i broke my tcase on...i split in completely around the hole case and it was spewing everywhere, just from holding the gas pedal to the floor over some tires.
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Old 05-27-2004, 10:12 PM   #13 (permalink)
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Lightbulb ok

Well for now at least I reckon I'll stick with Mr 208. I did some figuring on crawl ratios and with my 3.42 gears I know I'll be better off right now. I'm gonna use the 203 as a spare, and maybe one day as a donor for a doubler setup if I can find the adapter set cheap enough.

Chuck
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Old 05-28-2004, 08:07 AM   #14 (permalink)
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When you look to doing a doubler down the road check out Staz Works. He is in the vendor forum. I just got mine from him and its quality stuff and it only cost $450. He even makes them for the more common 27spline 205's, so you don't have to spend another $200 for a 32 spine input and machine the case, if the 27spline is all you can find or have.
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Old 05-28-2004, 11:28 AM   #15 (permalink)
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Cool

Jeff, thanks. I will definitely make sure I check into that when I go that route. B/c I did see the doubler adapter for $700!! Anyways, thanks!

Chuck
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