NP 205 trans adapter question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chipflyer · 12-30-2006, 09:50 PM

Is there supposed to be a gasket between the transmission and the T case adapter on a NP205 with a turbo 350? Took mine apart today to replace the coupler seals and install a fresh built t case and noticed there was no gasket there before and it looks like it might have been leaking.
Anybody have any idea?

Jeff

1969k10stepside · 12-30-2006, 09:52 PM

I believe there should be one

gator2511 · 12-30-2006, 10:52 PM

I have a TH400 bolted to an Advance adapter and it has a gasket between the tcase and the tranny.

**kwmech** · 12-31-2006, 02:49 PM

There should be a square cut 'O' ring between the 2

chipflyer · 12-31-2006, 10:32 PM

I went back out and looked in the oil pan I had under the back end of the transmission and there it was, the square cut o ring! Now the next question is can that o ring be bought at a parts store or is it going to be hard to find?

Thanks guys
Jeff

1969k10stepside · 12-31-2006, 10:43 PM

Should be easy to get one.Just tell them the tranny and t case and they should find one

12-30-2006, 09:50 PM	#1
chipflyer Registered User Join Date: May 2004 Location: Topeka, Ks Posts: 2,293	NP 205 trans adapter question Is there supposed to be a gasket between the transmission and the T case adapter on a NP205 with a turbo 350? Took mine apart today to replace the coupler seals and install a fresh built t case and noticed there was no gasket there before and it looks like it might have been leaking. Anybody have any idea? Jeff __________________ I'm not a pessimist, I'm just optimistic that bad things are going to happen. 1971 Cheyenne Super K10 - tilt, cruise, air, am/fm, tow hooks, factory buckets! 1986 Jeep J10 pickup, - 5.3L Vortec with 4L60e and NP241.

12-30-2006, 09:52 PM	#2
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: NP 205 trans adapter question I believe there should be one

12-30-2006, 10:52 PM	#3
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	Re: NP 205 trans adapter question I have a TH400 bolted to an Advance adapter and it has a gasket between the tcase and the tranny.

12-31-2006, 02:49 PM	#4
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,718	Re: NP 205 trans adapter question There should be a square cut 'O' ring between the 2

12-31-2006, 10:32 PM	#5
chipflyer Registered User Join Date: May 2004 Location: Topeka, Ks Posts: 2,293	Re: NP 205 trans adapter question I went back out and looked in the oil pan I had under the back end of the transmission and there it was, the square cut o ring! Now the next question is can that o ring be bought at a parts store or is it going to be hard to find? Thanks guys Jeff __________________ I'm not a pessimist, I'm just optimistic that bad things are going to happen. 1971 Cheyenne Super K10 - tilt, cruise, air, am/fm, tow hooks, factory buckets! 1986 Jeep J10 pickup, - 5.3L Vortec with 4L60e and NP241.

12-31-2006, 10:43 PM	#6
1969k10stepside Registered User Join Date: Mar 2006 Location: USA Posts: 21,019	Re: NP 205 trans adapter question Should be easy to get one.Just tell them the tranny and t case and they should find one

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