NP 205 Transfer Case Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

avejoe · 03-24-2005, 01:29 AM

Maybe this should be in the 4x4 area, but I think the traffic here may be better.

Are all New Process 205 X-fer case's the same? Meaning if I have one in my truck now, can I buy any other one and swap it it? All of the necessary adapters would already be on my truck right?

There's on on e-bay here local. My existing one can't get 4 high.

Thoughts?

Thanks!

Rod · 03-24-2005, 07:24 AM

There are different spline counts on input or output shafts.
Good read here.
http://www.offroaddesign.com/NP205tech.htm

rebuild info here
http://www.bulldogs-house.com/Projects/np205/

Truckstuff · 03-25-2005, 02:47 AM

In 1980 the NP205 started using a Slip Yoke on the rear output.

1969 GMC · 03-25-2005, 03:44 AM

there are so many variations it can make your head spin.

what kind of tranny are you running?

gator2511 · 03-26-2005, 09:39 PM

I'm doing a conversion right now from a th350 to a th400 with a t-case that origionally came with a 4 speed manual tranny. No slip yoke outputs. Be careful when doing things with this t-case as it can get complicated in a hurry. Its not impossible but you need to ask a lot of questions. I hope I asked enough! Parts should start coming in soon and that will tell the tale.

4x4Poet · 03-28-2005, 07:27 AM

Can't get 4hi? Dig into that sucka! I'll wager the gears and shafts are fine but the bearings are shot. My local bearing sales store sells NP205 bearing & seal overhaul kits for $125.

Besides, rebuilding NP205s is much easier than brakes.

Canadianbuilder · 03-30-2005, 12:53 AM

You didn`t say what the 205 on ebay was out of.If its out of a GM then yes it can be made to fit.If it came out of a Ford (and maybe Dodge too?)it won`t work because the output for the front driveshaft is on the wrong side.

avejoe · 03-30-2005, 01:36 AM

Don't get me started about the brakes.

full foot notch · 03-30-2005, 10:00 AM

hell, trying to find a divorced 205 Tcase is being a PITA for me

OneBad4x4 · 03-30-2005, 07:40 PM

not true on the 1980 slip yoke......

my 82 sm465/np205 combo is fixed yoke

also, on the divorced 205, do you want a passenger or driver drop, i have a passenger drop 205 with driveline

1969 GMC · 03-31-2005, 01:15 AM

I think all 1980 trucks used a SY 205.

and it would be nice if the original poster would answer our questions so we don't have to be psychic to figure out what he's got

Truckstuff · 03-31-2005, 03:34 AM

Quote:

Originally Posted by 1969 GMC

I think all 1980 trucks used a SY 205.

and it would be nice if the original poster would answer our questions so we don't have to be psychic to figure out what he's got

My 1980 Turbo 350/205 was rear slip yoke style which I changed to fixed yoke. My buddy just did a tranny swap in his 83 1 Ton, 4spd to Auto, the 465/205 had a slip yoke.

full foot notch · 03-31-2005, 12:41 PM

Quote:

Originally Posted by OneBad4x4

not true on the 1980 slip yoke......

my 82 sm465/np205 combo is fixed yoke

also, on the divorced 205, do you want a passenger or driver drop, i have a passenger drop 205 with driveline

i need a passenger drop since im running FS blazer axles, but im alllllll the way across the US, what type of price and shipping could you do to orlando, fl 32803

03-24-2005, 01:29 AM	#1
avejoe Custer had a plan too. Join Date: Dec 2003 Location: No. California Posts: 344	NP 205 Transfer Case Question Maybe this should be in the 4x4 area, but I think the traffic here may be better. Are all New Process 205 X-fer case's the same? Meaning if I have one in my truck now, can I buy any other one and swap it it? All of the necessary adapters would already be on my truck right? There's on on e-bay here local. My existing one can't get 4 high. Thoughts? Thanks! __________________ 72 K15 GMC (aka Big White) Performance Rockers, Cab Corners, and Floors Fossil Fuel Glutton Neighborhood Nuisance 98 BMW 540i for Speed (Sold ) 05 Subaru Outback for mileage

03-24-2005, 07:24 AM	#2
Rod Join Date: Dec 1999 Location: Eastern - Manitoba Canada, Winnipeg Posts: 4,369	There are different spline counts on input or output shafts. Good read here. http://www.offroaddesign.com/NP205tech.htm rebuild info here http://www.bulldogs-house.com/Projects/np205/ __________________ Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife.

03-25-2005, 02:47 AM	#3
Truckstuff Registered User Join Date: Dec 2003 Location: Cloverdale, British Columbia Canada Posts: 159	In 1980 the NP205 started using a Slip Yoke on the rear output. __________________ Real Trucks are Built not Bought Building: 1981 GM SB LowRider 1985 GM K3500 3+3 1981 GM K2500 SSB 1980 GM K2500 X-BC Hydro 1979 GM K3500 3+3 1976 GM K5 Blazer 1970 Custom 10 http://bc4x4.com/

03-25-2005, 03:44 AM	#4
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	there are so many variations it can make your head spin. what kind of tranny are you running? __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

03-28-2005, 07:27 AM	#6
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Can't get 4hi? Dig into that sucka! I'll wager the gears and shafts are fine but the bearings are shot. My local bearing sales store sells NP205 bearing & seal overhaul kits for $125. Besides, rebuilding NP205s is much easier than brakes. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

03-26-2005, 09:39 PM	#5
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	I'm doing a conversion right now from a th350 to a th400 with a t-case that origionally came with a 4 speed manual tranny. No slip yoke outputs. Be careful when doing things with this t-case as it can get complicated in a hurry. Its not impossible but you need to ask a lot of questions. I hope I asked enough! Parts should start coming in soon and that will tell the tale.

03-30-2005, 12:53 AM	#7
Canadianbuilder Registered User Join Date: Mar 2005 Posts: 10	You didn`t say what the 205 on ebay was out of.If its out of a GM then yes it can be made to fit.If it came out of a Ford (and maybe Dodge too?)it won`t work because the output for the front driveshaft is on the wrong side.

03-30-2005, 01:36 AM	#8
avejoe Custer had a plan too. Join Date: Dec 2003 Location: No. California Posts: 344	Don't get me started about the brakes. __________________ 72 K15 GMC (aka Big White) Performance Rockers, Cab Corners, and Floors Fossil Fuel Glutton Neighborhood Nuisance 98 BMW 540i for Speed (Sold ) 05 Subaru Outback for mileage

03-30-2005, 10:00 AM	#9
full foot notch Registered User Join Date: Apr 2003 Location: Central florida Posts: 3,223	hell, trying to find a divorced 205 Tcase is being a PITA for me

03-30-2005, 07:40 PM	#10
OneBad4x4 Lifted70BowTie Join Date: Jul 2004 Location: Bakersfield, CA Posts: 204	not true on the 1980 slip yoke...... my 82 sm465/np205 combo is fixed yoke also, on the divorced 205, do you want a passenger or driver drop, i have a passenger drop 205 with driveline __________________ I live in Bakersfield, CA 93308, I use USPS for shipping. (Even tho I've never shipped anything and am currently banned for failure to send out parts.) Please reply to my for sale threads by PMing me. Its hard to keep track of all the threads.

03-31-2005, 01:15 AM	#11
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	I think all 1980 trucks used a SY 205. and it would be nice if the original poster would answer our questions so we don't have to be psychic to figure out what he's got __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650



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