Where to find NP205?

[1969k10stepside]

Well,I am on a mission to find a np 205 t case for my shortbed K10.I havent had much luck finding just a transfer case locally and any I find online are to far away to pick up and they cant be shipped because of the weight.I am now considering buying a complete truck just for the transfer case.Ok,and now the question....What Chevy or GMC trucks came with a np 205 stock?I know they were in 71-72 4x4s stock and they were in 73-87's with a manual tranny,correct?But what years did they come with the NP205 with an automatic tranny?I need to know what years of trucks to concentrate my search on so I can find one.All the trucks I have found have only turned out to have Np203 t-cases and I am not putting one of those in my shortbed.I guess if I still cant get one I will shove in of my spare rockwell T221's in it till I do find one but the longer I am without it the longer the truck is apart and I am trying to get it back together ASAP.So if someone could tell me what years and models to look for I would really apprectiate it.

[kwmech]

Must be a shortage in Indiana, I'm always tripping over them in the local wrecking yards. BTW I have about 7 of them---all rebuilt with various adaptors.

[1969k10stepside]

There must be a shortage.I went to the junkyards and found alot of 4x4s but they all had np 203s and 208s.Couldnt find any np205s.

[Southedisto]

Have you checked craigslist?

[1969k10stepside]

Yeah,I have and came up with no luck.I did however find a very cheap 72 LWB K10 that has a np205 and for the price I am considering buying it and besides getting the transfer case I will have another lifted 4x4 to add to my stable if I keep it after I pull the transfer case.

[JAKES 68GMC]

Dustin, I bought mine for 50 bucks, along with the SM465 it was mated to, out of a 1970 K10 and any other parts I wanted off the truck. (never did get any parts off of it ) The t-case works, but it's got some play in it, and probably could use a rebuild someday. I'd look around in the classifieds, and keep checking junkyards.

[1969k10stepside]

Sounds like you got a good deal there.I am still checking around but havent had much luck finding one.If I was looking for a np203 there would be 205s everywhere so maybe I should temporarily change my search

[Huck]

Try JAMIE72---he has some and is just north of Madison, In---just down the road a piece from you.

[1969k10stepside]

Ok,back on subject and back to the original question posted:

Originally Posted by 1969k10stepside

Ok,and now the question....What Chevy or GMC trucks came with a np 205 stock?I know they were in 71-72 4x4s stock and they were in 73-87's with a manual tranny,correct?But what years did they come with the NP205 with an automatic tranny?

Can someone give me some info on this?

[ClassicJimmy]

This is from the "short episode on the soapbox" thread-

Quote:
Originally Posted by LONGHAIR
Generally all you need to do is find out what transmission is in the truck. An automatic transmission will have a 203 and a 4 speed will have the 205. When you get up into the early 80's they have NP208 cases. This a totally different slip-yolk unit.



I'm not sure that is true - I have a 4 spd in my 75 K25 & its a NP203. It's been converted to part time like it should have been in the first place, but none the less a 203. I would think the confusion would be with the 205 & 208 since thay have the same shift patterns - the 203 has from front to back: Low Lock, Low, N, Hi, Hi Lock. Just sharing what little I know.

[69TowRig]

Not all 205s will fit either, as the early married GM cases had the figure-eight bolt pattern (what you need). Later ones went to the more standard 6-hole round pattern.

[454_72_4X4]

How far ya willin to drive? I just brought home a chassis that has a 205 in it. I'm in the very northeast corner of Missouri.

[bowtiedude]

My 73 K20 with a 454 /TH400 had one. Had being the operative here. I don't know how plentiful they are anymore,
but it gives you something to shoot for.

[1969k10stepside]

I dont think my truck could make it the far to be honestYou are talking about that Jimmy that Randy had for sale right?I figure I might be able to go a distance to a certain point for a whole truck because I can never own too many trucks but my yard cant hold many more trucks scattered in hundreds of parts and it will be time to start mowing before too many more months and grass grows faster than I can build trucks.

[EFI70Blazer]

Originally Posted by 1969k10stepside

What Chevy or GMC trucks came with a np 205 stock?I know they were in 71-72 4x4s stock and they were in 73-87's with a manual tranny,correct?But what years did they come with the NP205 with an automatic tranny?I need to know what years of trucks to concentrate my search on so I can find one.

205's were available clear up into 1991 in 1 ton 4 door pickups. As far as finding them behind an automatic after 72 most of them were in 1 tons behind a TH400. I am sure there may have been some available in the early 70's behind a TH350 after 1972, but i am not sure of the cutoff date. One from a 4 speed will work as long as you change out the front input shaft. As far as the front driveline hookup goes, I think in 77 was the year the front output changed from a yolk 10 spline unit to the stronger 28 spline square flange unit. There were other changes later, but i am not sure of all of them and what they entailed. Rear output slip yolk was added in the 80's along with a different shifter mouning plate that incorperated a nylon bushing to be inserted between the linkage for the shifter. I upgraded the one i am putting in my 86 because i hate shifter rattle. I also installed the shift rail switch, so my 4x4 light would come on when it is engaged into 4 wheel drive.


For those of you wanting to add an indicator light that lets you know when you are in 4 wheel drive, the part number is 15594176 for the switch that screws into one of the shift rail holes.

Hope this helps somewhat even though i don't know all the details.

[1969k10stepside]

Thank you for the info,I think the best bet at the time would be to look for a 67-72 with a np205 and know I have the right t case

[Joe Gribben]

i have acouple np205 cases not sure really what there worth live in nw indiana if that helps at all.

[Troy-Built]

I have a 205 from behind a turbo 350 out of my 72 parts blazer. I'd like 150 out of it. I live just south of Interstate 74 4 East of Illinois.
Thanks Troy

[454_72_4X4]

What trans are you planning on running? (Or did I miss that part?)

Anyway, just FYI, there are 4 different input designs for the 205 in GM trucks that I know of.
Your best bet is to get a 205 that was originally behind whatever transmission you're planning on running.

Here's the input/trans combos that I know of;

205 Input Trans
10 spline male SM465 4 speed
27 spline male TH350 Auto
32 spline female, (short) TH400
32 spline female, (long) Later model 4 speed? (Not sure if these are still the SM465 and the "long" female input may have also been behind some TH400 transmissions? Not to familiar with the "long" input.

Here's some more;
the 10 spline and 27 spline male input 205's use a smaller input bearing than the 32 spline female input.
So, for example, if you were going to run a 4 speed, (10 spline), or a TH350 trans, (27 spline), the 32 spline input 205 cannot be used. You can't change the input to the smaller bearing inputs because the hole in the case for the bearing is to big.
Now on the other hand, if you were to go the other way around, you can always have the smaller bearing hole machined out to fit the larger input bearing.

Hope you can make sense of all that....

Here's an old thread of mine that might interest you also;
http://67-72chevytrucks.com/vboard/s...d.php?t=193260

[1969k10stepside]

Originally Posted by 454_72_4X4

What trans are you planning on running? (Or did I miss that part?)

I am pretty sure at this point that I am putting a TH350 in it.I would have liked to put a standard tranny in it but I dont want that low geared SM465 in it and I dont want to modify the truck all that much for a 5 spd so a TH350 will go in it.

[1969k10stepside]

Thanks to everyone for the info. Troy-built and I have set up a deal and I am supposed to be buying his transfer case,and a few other items I need, and pick it up next week.Looks like my search will finally be over and I can get this truck going.

Thanks to all and Merry Christmas!