Transmission/transfer case question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Scott Johnson · 10-30-2003, 12:50 AM

Ok, I am in the planning/dreaming stage on my project as far as motor and transmission goes. My question is, will different transmissions such as a 700r or the newer overdrive hook up to my transfer case on my 72 Suburban? How about a 5 Speed manual from about a 90 model 4wd Chevy Truck? Just wanting to know so I can start looking.

Scott

1969 GMC · 10-30-2003, 02:21 AM

to adapt either the 700r4 or a 5 spd OD tranny to the original np205, you will need a special adapter which = $, but would have good results.

Scott Johnson · 10-30-2003, 08:47 AM

Where can I find an adapter?

ckhd · 10-30-2003, 11:13 AM

Was it originally auto?

If so, you can get an adapter from AA (It's not really an adapter, it's just an output shaft that lets the 700r4 bolt to the NP205 using your original parts). That's what I did with my 'burb's 700r4 conversion.

I'm not sure what it would take if it was manual, or not a NP205.

ckhd · 10-30-2003, 11:14 AM

Oh, to do the output shaft route, the tranny has to be taken apart. I had the shaft put in when I had my tranny built.

Scott Johnson · 10-30-2003, 04:26 PM

It is a manual right now, not sure if it is a np205, but I`ll check tonight.

Scott Johnson · 10-30-2003, 11:19 PM

I have a np205 and the current transmission is 3sp manual.

Scott Johnson · 11-03-2003, 10:37 PM

ttt

ckhd · 11-04-2003, 10:13 AM

I checed out AA's site and they have adapters that will take just about whatever to whatever. They had adapters to get a NV4500 transmission to hook up to your 10-spline NP205 case, and they had them to get a 700r4 to hook up to it too. Go here to download parts of their catalog:
http://www.advanceadapters.com/catalog/catalog.html

This is the specific part of the catalog that I found the adapter charts in:
http://www.advanceadapters.com/acrobat/gm.pdf

Scott Johnson · 11-04-2003, 11:31 PM

Thanks ckhd, I`ll check them out.

72beast · 11-10-2003, 12:11 PM

not sure with your three sp trans...but a 700r will will hook up to the 205 with a TH350/NP205 adapter plate...you can do 1 of 2 things...
(1) buy and install the Advanced Adapter output shaft for the 700R4($185.00), find or buy the adapter TH350/NP205 ($225.00) and it will bolt right up.
(2) find or buy the adapter TH350/NP205 ($225.00), add a 2" spacer ring between the 700R4 and the adapter, cut about 1" off the output shaft of the 700R4..

10-30-2003, 12:50 AM	#1
Scott Johnson Junior Member Join Date: Feb 2003 Location: Louisiana Posts: 281	Transmission/transfer case question Ok, I am in the planning/dreaming stage on my project as far as motor and transmission goes. My question is, will different transmissions such as a 700r or the newer overdrive hook up to my transfer case on my 72 Suburban? How about a 5 Speed manual from about a 90 model 4wd Chevy Truck? Just wanting to know so I can start looking. Scott __________________ 71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com

10-30-2003, 02:21 AM	#2
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	to adapt either the 700r4 or a 5 spd OD tranny to the original np205, you will need a special adapter which = $, but would have good results. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

10-30-2003, 08:47 AM	#3
Scott Johnson Junior Member Join Date: Feb 2003 Location: Louisiana Posts: 281	Where can I find an adapter? __________________ 71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com

10-30-2003, 11:13 AM	#4
ckhd Registered User Join Date: Oct 2000 Location: St. Johns, Arizona Posts: 2,660	Was it originally auto? If so, you can get an adapter from AA (It's not really an adapter, it's just an output shaft that lets the 700r4 bolt to the NP205 using your original parts). That's what I did with my 'burb's 700r4 conversion. I'm not sure what it would take if it was manual, or not a NP205. __________________ my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans?

10-30-2003, 11:14 AM	#5
ckhd Registered User Join Date: Oct 2000 Location: St. Johns, Arizona Posts: 2,660	Oh, to do the output shaft route, the tranny has to be taken apart. I had the shaft put in when I had my tranny built. __________________ my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans?

10-30-2003, 04:26 PM	#6
Scott Johnson Junior Member Join Date: Feb 2003 Location: Louisiana Posts: 281	It is a manual right now, not sure if it is a np205, but I`ll check tonight. __________________ 71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com

10-30-2003, 11:19 PM	#7
Scott Johnson Junior Member Join Date: Feb 2003 Location: Louisiana Posts: 281	I have a np205 and the current transmission is 3sp manual. __________________ 71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com

11-03-2003, 10:37 PM	#8
Scott Johnson Junior Member Join Date: Feb 2003 Location: Louisiana Posts: 281	ttt __________________ 71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com

11-04-2003, 10:13 AM	#9
ckhd Registered User Join Date: Oct 2000 Location: St. Johns, Arizona Posts: 2,660	I checed out AA's site and they have adapters that will take just about whatever to whatever. They had adapters to get a NV4500 transmission to hook up to your 10-spline NP205 case, and they had them to get a 700r4 to hook up to it too. Go here to download parts of their catalog: http://www.advanceadapters.com/catalog/catalog.html This is the specific part of the catalog that I found the adapter charts in: http://www.advanceadapters.com/acrobat/gm.pdf __________________ my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans?

11-04-2003, 11:31 PM	#10
Scott Johnson Junior Member Join Date: Feb 2003 Location: Louisiana Posts: 281	Thanks ckhd, I`ll check them out. __________________ 71 C10 Step Daily Driver 72 K10 Suburban Work in Progress www.louisianaclassictruckclub.com

11-10-2003, 12:11 PM	#11
72beast TONYP Join Date: Oct 2001 Location: So Cal Posts: 100	not sure with your three sp trans...but a 700r will will hook up to the 205 with a TH350/NP205 adapter plate...you can do 1 of 2 things... (1) buy and install the Advanced Adapter output shaft for the 700R4($185.00), find or buy the adapter TH350/NP205 ($225.00) and it will bolt right up. (2) find or buy the adapter TH350/NP205 ($225.00), add a 2" spacer ring between the 700R4 and the adapter, cut about 1" off the output shaft of the 700R4.. __________________ 72 K/5 350/205 SOFT-TOP DOUG THORLEY HEADERS A/C CUSTOM REAR BUMPER http://www.socalbigdawgs.com/tr/7.18.03/DSC04290.JPG

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