700r4 swap????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fast71 · 01-26-2003, 04:44 PM

Okay ,I want to take my 700r4 out of my 82 k10 and replace it with a 350 turbo . The truck is now sporting a 700r4 and a np208 tranfer. I know the np208 wont bolt to a 350 so heres my question , does anyone make an adapter or I'm I going to have to find a trans and transfer combo .

79Silv4x4 · 01-27-2003, 08:34 AM

http://www.advanceadapters.com/

orionwy2002 · 01-28-2003, 01:09 PM

Why do you want to get rid of your 700r4?
Seems like everybody including me is doing the opposite. We all want OD.

I'm not sure but I think a 208 will bolt to a th350. I think they came from the factory this way on trucks w/o OD after 81.

If not, i'm sure you could trade your 700r4 to somebody for a 205 that will bolt to yor th350.

Hell, if ya want, I've got a th350/203 combo I'd sell you!!

crazy4chevs · 01-28-2003, 01:13 PM

The 208 will bolt to a th350. I had one in my 83 k-5 it uses factory parts too.

fast71 · 02-02-2003, 01:40 AM

I found a guy localy that will take a 2 wheel drive 350 turbo that I have and change it to a 4 wheel trans , build it and install an adapter for my transfer case That way I wont have to find drive shafts. Total charge 400.00

86k10 · 02-12-2003, 11:06 PM

1981 K10 all had 350 trans and 208 transfer case, so a factory adapter should be easy to get, but am trying to remember if they used the 6" long tailshaft or made a special one for that year. I've done that conversion so I know it can be done, but it has been quite a while back. Check with a dealer and look up the length of the 4X4 trans output shaft compared with a 2 wheel drive model and see if they are the same length. If they are then all you need is the factory adapter between the 2.

fast71 · 03-04-2003, 11:26 PM

Well my problem will be solved this coming weekend. I found a guy in NC that builds transmissions and he is bring me a 350 turbo and converter. He has install a kit that will bolt up to my np208 and I wont have to change anything. The best part is I'm trading a bunch of old trans cores and 3 engines for this tranny.

01-26-2003, 04:44 PM	#1
fast71 Drive it like U stole it Join Date: Mar 2000 Location: tunnel hill ,GA /Chatt,TN Posts: 956	700r4 swap????? Okay ,I want to take my 700r4 out of my 82 k10 and replace it with a 350 turbo . The truck is now sporting a 700r4 and a np208 tranfer. I know the np208 wont bolt to a 350 so heres my question , does anyone make an adapter or I'm I going to have to find a trans and transfer combo . __________________ 71 custom 10 swb 72 nova ss 72 nova custom 87 s10 96 burb 94 camry 53 5 window 3100

01-27-2003, 08:34 AM	#2
79Silv4x4 Workaholic Join Date: Oct 2002 Location: Katy, TX Posts: 1,589	http://www.advanceadapters.com/ __________________ 1979 K-10 Silverado (work in progress) 1991 V1500 Subruban 1999 Suburban LT 4x4 2006 Suburban LTZ (daily driver)

01-28-2003, 01:09 PM	#3
orionwy2002 Registered User Join Date: Jan 2003 Location: St.Louis Mo Posts: 43	HUH??? Why do you want to get rid of your 700r4? Seems like everybody including me is doing the opposite. We all want OD. I'm not sure but I think a 208 will bolt to a th350. I think they came from the factory this way on trucks w/o OD after 81. If not, i'm sure you could trade your 700r4 to somebody for a 205 that will bolt to yor th350. Hell, if ya want, I've got a th350/203 combo I'd sell you!! __________________ Orion 80K10Scottsdale 350/th350/205 d44/14bff locked 35's 97 blazer 4x4 daily driver

01-28-2003, 01:13 PM	#4
crazy4chevs Registered User Join Date: Oct 2002 Location: Des Moines WA. (Kent, area) Posts: 668	The 208 will bolt to a th350. I had one in my 83 k-5 it uses factory parts too. __________________ 70 chev c10 swb fleet 72 grill, sb 400, 2/4 drop. 68 chev c10 swb fleet Early classic 4/6 drop with 4wheel disc brakes 9"rear 67-8 buckets tilt and A/C Classic GM Truck Club of Washington .

02-02-2003, 01:40 AM	#5
fast71 Drive it like U stole it Join Date: Mar 2000 Location: tunnel hill ,GA /Chatt,TN Posts: 956	I found a guy localy that will take a 2 wheel drive 350 turbo that I have and change it to a 4 wheel trans , build it and install an adapter for my transfer case That way I wont have to find drive shafts. Total charge 400.00 __________________ 71 custom 10 swb 72 nova ss 72 nova custom 87 s10 96 burb 94 camry 53 5 window 3100

02-12-2003, 11:06 PM	#6
86k10 Registered User Join Date: Feb 2003 Location: Bertrand, Nebraska Posts: 355	1981 K10 all had 350 trans and 208 transfer case, so a factory adapter should be easy to get, but am trying to remember if they used the 6" long tailshaft or made a special one for that year. I've done that conversion so I know it can be done, but it has been quite a while back. Check with a dealer and look up the length of the 4X4 trans output shaft compared with a 2 wheel drive model and see if they are the same length. If they are then all you need is the factory adapter between the 2.

03-04-2003, 11:26 PM	#7
fast71 Drive it like U stole it Join Date: Mar 2000 Location: tunnel hill ,GA /Chatt,TN Posts: 956	Well my problem will be solved this coming weekend. I found a guy in NC that builds transmissions and he is bring me a 350 turbo and converter. He has install a kit that will bolt up to my np208 and I wont have to change anything. The best part is I'm trading a bunch of old trans cores and 3 engines for this tranny. __________________ 71 custom 10 swb 72 nova ss 72 nova custom 87 s10 96 burb 94 camry 53 5 window 3100



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