: np203/205 doubler setup questions


Jonathan M
12-21-2001, 02:41 PM
I recently aquired a sm465 that has a np 203 t-case attached to it. I was thinking of swapping it for a part time 205 but then heard about the dualt t-case setup. So the question is what is the best 205 to attach to the reduction gear side of the 203 (one that came behind a th350,th400,465...)? Also did the 205 come with a fixed yooouke or slipped your ofr both. If i did get a slipped yoke 205 how hard is it to make it a fixed yoke?

Thanks,
Jon

zakk
12-21-2001, 03:04 PM
use the search buttom or go to www.offroaddesign.com and research the doubler design there.


just 27 more minutes till i am off and gonna have me some :beer: :beer: :beer: 's

mj
12-21-2001, 03:26 PM
the 32 spline t400 version is the one supported by ORDs current design as it is the toughest.
any 205 can be machined to accept the 400 input gear

thatK30guy
12-23-2001, 08:36 PM
If you want to make a Doubler out of that 465/203, you are gonna need a 205 that was mated to a 465 also.

The 465 tranny's have a 10-spline shaft. In order to use a Doubler with this set up, you would need the Generation I kit. The Generation II kit is geared more to the 400-version 205's and makes the overall set up "shorter" than the Generation I, which uses factory adaptors to mate the 203 and 205 all together.

Check out the info on offroaddesign.com and read the full info on how and what to do.

205's are available in both fixed and slip yokes. The fixed yokes were available up to '79, and the slip yokes were started in '80. Since the K30's retained the 205 t-cases past '80, you can find them also to be in slip yokes. BUT....if you can find a 205 in a crew cab, those cases will be a fixed yoke. ;)

mj
12-23-2001, 10:59 PM
since when does the 205 care what tranny is on the other side of the doubler range box Wes?

you need a 205 with a th400 32 spline input gear to run the CURRENT doubler.

fawkin newbies :zzz:

thatK30guy
12-24-2001, 07:26 AM
Did you read my post carefully? Evidently not.

I said the Generation I will require the 10-spline 205 to work with the 465/203 combo.

Then I said the Generation II is geared to the 400-version 205 t-cases. This Generation II is what you are referring to as "CURRENT Doubler".

If you can make a 400-version 205 work or fit the Gen. I 465/203 set up, good luck.

Don't repeat what I have just said! :flipoff2:

Yeah, I'm a newbie, but so what!!! :flipoff2:

mj
12-24-2001, 12:55 PM
why are you trying to get him to search for a Gen I?
as they are no longer being made it is an assinine suggestion and misleading as hell
like every other doubler setup WHAT IS IN FRONT OF THE 203 MAKES NO DIFFERENCE AS TO WHICH 205 VERSION YOU NEED

to use current Gen II you have to use th400 input,
to use Gen I you have to find a Gen I in the used market, good luck on that feat

his question was "which is the best 205 to use?"
the ONLY answer to that is the 32 spline 205 that is required with the only currently available doubler kit

thatK30guy
12-24-2001, 02:36 PM
Reread the original post, moron! He said he "acquired a 465 with a 203".

Do the math. A Gen. II Doubler will not work on a 465!!! The 465 has 10 splines. Thats 22 LESS splines than a 400-version 205.

Don't go trying to get someone to waste their time and money getting the wrong product. :flipoff:

pcorssmit
12-24-2001, 02:51 PM
Uh, Wes, what in the hell are you talking about? This didn't make sense when I was shnockered last night, and it still don't. Yes, the 465 has 10 splines. Why does this matter? It's already hooked to the 203. In order to use the Gen II Doubler kit, he needs a 32 spline, female input, TH400 version 205.

Pete

shaggyk5
12-24-2001, 05:26 PM
lay off the coffee wes....:(

thatK30guy
12-24-2001, 06:13 PM
Pete, I have been told in order to run the Doubler on the 465, you would need to get the 205 from a 465/205 set up.

I have not heard of the Gen. II being set up to where you can run the 465/203 and then use the 32 spline 205 behind that.

I'm planning to run the Doubler on my '82 K30 which already has the 465/205 and I'm trying to find the 10-spline 203 right now. I was told I would need the Gen. I to make all this work.

I already asked about the Gen. II to work behind the 465/203 and was told "no".

I guess the only way to find out for sure is to go to the source, ORD. I will send Watson a PM or e-mail and see what he says.

pcorssmit
12-24-2001, 06:40 PM
The only way to use YOUR 205 (465 version) is with either a Gen I doubler and the factory adapter, or, convert it to a TH400 version (by machining the case, changing to the 32 spline female input, etc.) and using the Gen II doubler.

The only way to use the Gen II adapter is with a TH400 version 205. Like you said, to run a 465 with a doubler, you need a 10 spline 203 that originally came behind a 465.

Pete

mj
12-25-2001, 01:30 AM
way to go Wes!
you made a simple question clear as mud.
now rather then bother Stephen,
GO LOOK AT THE SITE
it spells it all out plain as day

mj
12-25-2001, 01:33 AM
newer, 1980ish, chev 205s have a slip yoke
all the old ones have fixed yoke
easy swap to the more common old style
and if you want huge u joints the dodge 205 behind cummins diesels 1989ish to 1993 used 1410 spicer yokes

thatK30guy
12-25-2001, 06:58 AM
Originally posted by mj
way to go Wes!
you made a simple question clear as mud.
now rather then bother Stephen,
GO LOOK AT THE SITE
it spells it all out plain as day

You sure like to gloat, don't ya? :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2: :flipoff2:

spoolnaround
12-25-2001, 04:27 PM
:rolleyes:

Jeff_Super_S
12-26-2001, 10:20 PM
Wes -Any chance your k30 is a crew-cab? I know two different guy running dual 205 in crew cabs. You keep your current set-up and just add a second "divorced" 205 behind that. You really need to have a Crew cab though, that way you still have a rear driveshaft. Ya and who wheels crew-cabs right? Only mud guys!!

thatK30guy
12-27-2001, 02:31 PM
Nope, no crew cab here. Just regular cab.

Click here to view a pic of my '85 K30. (http://community.webshots.com/photo/17810628/17810749aOyfjjOLNp)

Chaz Murray
12-27-2001, 03:45 PM
Hey wes i have talked to steven at ORD and a 465 can be used with a gen 2...i talked to him prior to converting my truck from a 700r4 to a 465...i was told all i would have to do is get a 205 from a 350 and have it machined out for a larger bearing (ord will do the machineing and has the bearings)..the only issue for using a 465 is finding the 203 for the 465....because you need the 10 spline input for the 203 to mate to the 465...the output on the 203 gets changed to a 32 spline (or 28 i cant remember off the top of my head) so the 205 really makes no diff at all...so the answer is yes you can run the Gen II doubler :smokin:

mj
12-27-2001, 07:18 PM
no problem wes,
I accept your apology for calling me a moron.

great the way you step up like that,
after it turns out that you were the moron of this thread.

thatK30guy
12-27-2001, 07:26 PM
I'm feeling like the moron now after I have figured out who you are.....Michael Millar!!

I did not realize you were the "77chev" dude from CK5.

Seems like no matter where we go, we always have some rifs with each other.

Personally, I'm kind of tired of our rifs and have been trying to "straighten up" myself on CK5, if you haven't noticed.

Now that I know who you are on this site, I'm gonna have to settle down again. ;)

mj
12-27-2001, 09:49 PM
i hate that name on CK5.
I wont play with you anymore then Wes.
Yes I had noticed your "adjustments"

orangefj45
01-04-2002, 08:41 PM
and all the tk kid wanted was a straight answer!?:rasta:

Butch
01-04-2002, 09:21 PM
For the gen II doubler which is what you can now buy you need a 465 to 203 adapter with the 10 spline 203 range box then a 205 with a 32 spline input same as the 400/205 case. I took my 205 from my 465 and machined it out to accept the larger bearing and 32 spline input which is available from ORD. Buy the doubler kit and go to town. The Gen I doubler would use a turbo 350 205 with 27 spline input but they are no longer available and are not practicle in a K-5 due to the length involved. A couple of crossmember mods, driveshaft mods, longer speedo cable and you are in business. By the way, best upgrade ever done to Blazer followed closely by crossover steering. In a manual you will love the doubler

offroad-dog
05-20-2010, 10:25 PM
not trying to revive an old thread but I feel this needs to be simplified for anyone reading it.

Doubler kits adapt a 205 to the 203 range box, not the transmission, and since he has a 203 bolted to his trans already, SM465 does not even need to be mentioned!


You need a GM a 32 spline 205 from a TH400, as this is the only case that will work with the doubler kits available today, you can however machine the opening of other GM version 205's to the GM TH400 case spec and get a 32 spline shaft from the aftermarket.

All Married Ford 205 cases are the same and you have to use a doubler kit for a ford.