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#1 |
Active Member
![]() Join Date: Mar 2005
Location: Annapolis, MD
Posts: 183
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Turbo 350 205 T/C Leak
My 72 K5 is leaking trans fluid into the T case. I have had it apart twice and still leaking. The first time, I had the seals backwards. My second attempt, I took apart a virgin 205 and adapter. The original seals were in there and I took the seal to the parts house, they matched, I re-installed correctly. Thought I had it licked.... wrong! After checking on the Net, I found an old posting from us,
hdfslf wrote on 11/30/2008: Actually there are 3 seals. Been there done that. There are 2 seals on the outside diameter of the coupler (these are the likely leak path). Pay attention to the direction they are installed since they are backwards from what you would normally see. Third seal is a thick o-ring on the NP205 input shaft which seals with the inside diameter of the coupler. Does anyone know what size o ring or have a part number for it? I am getting ready to take apart and would like to have the part on hand. |
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#2 |
Active Member
![]() Join Date: Mar 2005
Location: Annapolis, MD
Posts: 183
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Re: Turbo 350 205 T/C Leak
110_4686.jpg
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#3 |
Active Member
![]() Join Date: Mar 2005
Location: Annapolis, MD
Posts: 183
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Re: Turbo 350 205 T/C Leak
Here is a pic of my K5, also getting ready to take the top off for the summer.
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#4 |
Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: Turbo 350 205 T/C Leak
Maybe you could post brand and part numbers of the seals and the o ring for reference?
__________________
1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
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#5 |
Active Member
![]() Join Date: Mar 2005
Location: Annapolis, MD
Posts: 183
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Re: Turbo 350 205 T/C Leak
I will post the seal info later today.
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#6 |
Registered User
Join Date: Jan 2007
Location: Mesa, AZ
Posts: 781
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Re: Turbo 350 205 T/C Leak
Working on mine too. I can't seem to get the yoke nut off the front output.
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#7 |
Registered User
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 2,396
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Re: Turbo 350 205 T/C Leak
Big impact.
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