Will a 700r4 matchup to a NP205? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

KyFarm · 01-21-2012, 06:41 PM

Ok, I posted on here last week that I bought a 72 Highlander 4x4. Lets just say that it turns out I'm a bit of a sucker. I guess I got a little too excited.

At least I do have a decent rolling frame and transfer case. I am now in need of a donor truck with a good cab at a minimum and hopefully a worthy motor/trans. The other body parts I can get.

I'm going to look at one on Monday probably that is local and it has a 700R4 and a freshly built motor.

Are there any issues using that transmission in a 72 LWB frame with a NP205 transfer case? Thanks for any and all help.

Scott

ghettoluxury · 01-21-2012, 10:40 PM

You will need a NP205 for a TH350 and the adapter.

KyFarm · 01-21-2012, 10:52 PM

The NP205 was originally matched up to a TH350,

Can you recommend a source for the adapter?
Posted via Mobile Device
Posted via Mobile Device

wilkin250r · 01-21-2012, 11:35 PM

From what I recall, the 700R4 output shaft is a little longer than the TH350 output shaft, but they're both 27-spline shafts. Lots of people make adapters for various transmission to bolt to an NP203 because the doubler kit is so popular, but I don't know any that make a specific 700R4 to 205 adapter.

The rear bolt pattern for the 700R4 is the same as the TH350, but the output shaft is longer. So you could replace the output shaft with a specialty shaft that makes it identical to the TH350 output, and then use stock components. The output shaft is less than $200, but it requires a transmission rebuild.

The other option that I've heard about (but haven't seen personally) is to buy a specialty adapter used for replacing a TH350 with a 700R4, then cut about 1/4 inch off the output shaft of the 700R4, and life is golden.

BLAZERMAN · 01-22-2012, 12:06 AM

Heres some good reading for you. http://67-72chevytrucks.com/vboard/s...d.php?t=128495

speedfreekk · 01-22-2012, 02:14 AM

http://www.transmissionpartsusa.com/...it_s/11158.htm
7-35a is what I did to put 700r4 to a np205. Makes it a little longer but will not hurt.
Hope this helps.

snj8198 · 01-22-2012, 10:16 AM

ORD is also offering the correct length output shaft for use with the th350 adapter.

http://offroaddesign.com/catalog/trannyoutput.htm

Beelzeburb · 01-23-2012, 03:20 PM

Or there is always the Advance Adapters short TH700R4 output shaft:

http://www.advanceadapters.com/products/pn-50-6900/

1malo68 · 01-24-2012, 05:21 AM

Quote:

Originally Posted by snj8198

ORD is also offering the correct length output shaft for use with the th350 adapter.

http://offroaddesign.com/catalog/trannyoutput.htm

You can also use this if you don't want to rebuild the tranny
http://offroaddesign.com/catalog/700r4spacer.htm

01-21-2012, 06:41 PM	#1
KyFarm Registered User Join Date: Sep 2009 Location: Taylorsville, KY Posts: 261	Will a 700r4 matchup to a NP205? Ok, I posted on here last week that I bought a 72 Highlander 4x4. Lets just say that it turns out I'm a bit of a sucker. I guess I got a little too excited. At least I do have a decent rolling frame and transfer case. I am now in need of a donor truck with a good cab at a minimum and hopefully a worthy motor/trans. The other body parts I can get. I'm going to look at one on Monday probably that is local and it has a 700R4 and a freshly built motor. Are there any issues using that transmission in a 72 LWB frame with a NP205 transfer case? Thanks for any and all help. Scott __________________ KyFarm's Build/Need help thread 1969 K-10, Short Step, (383HT/4L70E soon)-NP205

01-21-2012, 10:40 PM	#2
ghettoluxury Registered User Join Date: Apr 2009 Location: Waynesfield Ohio Posts: 1,991	Re: Will a 700r4 matchup to a NP205? You will need a NP205 for a TH350 and the adapter. __________________ 1949 Five Window, 1973 Step Side, 2000 Z71

01-21-2012, 10:52 PM	#3
KyFarm Registered User Join Date: Sep 2009 Location: Taylorsville, KY Posts: 261	Re: Will a 700r4 matchup to a NP205? The NP205 was originally matched up to a TH350, Can you recommend a source for the adapter? Posted via Mobile Device Posted via Mobile Device __________________ KyFarm's Build/Need help thread 1969 K-10, Short Step, (383HT/4L70E soon)-NP205

01-21-2012, 11:35 PM	#4
wilkin250r Registered User Join Date: Sep 2010 Location: Lake Tahoe, Nevada Posts: 755	Re: Will a 700r4 matchup to a NP205? From what I recall, the 700R4 output shaft is a little longer than the TH350 output shaft, but they're both 27-spline shafts. Lots of people make adapters for various transmission to bolt to an NP203 because the doubler kit is so popular, but I don't know any that make a specific 700R4 to 205 adapter. The rear bolt pattern for the 700R4 is the same as the TH350, but the output shaft is longer. So you could replace the output shaft with a specialty shaft that makes it identical to the TH350 output, and then use stock components. The output shaft is less than $200, but it requires a transmission rebuild. The other option that I've heard about (but haven't seen personally) is to buy a specialty adapter used for replacing a TH350 with a 700R4, then cut about 1/4 inch off the output shaft of the 700R4, and life is golden.

01-22-2012, 12:06 AM	#5
BLAZERMAN Currently Blazerless Join Date: Apr 2000 Location: St. Joseph Mo. Posts: 4,828	Re: Will a 700r4 matchup to a NP205? Heres some good reading for you. http://67-72chevytrucks.com/vboard/s...d.php?t=128495 __________________ 1972 C/30 133" W.B. C&C 1970 GMC 3500 157" W.B. single wheel C&C

01-22-2012, 02:14 AM	#6
speedfreekk Registered User Join Date: Dec 2010 Location: climax, mi Posts: 10	Re: Will a 700r4 matchup to a NP205? http://www.transmissionpartsusa.com/...it_s/11158.htm 7-35a is what I did to put 700r4 to a np205. Makes it a little longer but will not hurt. Hope this helps.

01-22-2012, 10:16 AM	#7
snj8198 Registered User Join Date: Feb 2007 Location: Star Valley, WY Posts: 2,038	Re: Will a 700r4 matchup to a NP205? ORD is also offering the correct length output shaft for use with the th350 adapter. http://offroaddesign.com/catalog/trannyoutput.htm __________________ Steve 1971 GMC Longbox. Full Roller Stroker 489 w/ FiTech EFI, Chris Straub Cam/NV4500/205/D60/14B w. Grizzly Locker and 4.11's. 2" Lift on 33's

01-23-2012, 03:20 PM	#8
Beelzeburb Devil's in the Details Join Date: Sep 2008 Location: Southern Utah Posts: 353	Re: Will a 700r4 matchup to a NP205? Or there is always the Advance Adapters short TH700R4 output shaft: http://www.advanceadapters.com/products/pn-50-6900/ __________________ '70 K10 Suburban - TBI 454, 4L80E, NP241C, Dana 60 & 44 - The 10+ Year Project Thread Datsun 240Z, 510 2 door and an old Honda motorcycle



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