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01-03-2010, 09:02 PM
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#1 |
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Registered User
Join Date: Dec 2009
Location: Milroy Pa
Posts: 17
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NP 205 seals
Where can i buy the seals for in the adapter for a np205 to turbo 350. I want to replace the three seals before i put the tranny and transfercase in my truck but do not know where to get them. sites or part numbers are apreciated. Thanks again guys
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01-03-2010, 09:13 PM
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#2 |
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Registered User
Join Date: Aug 2009
Location: S.C.
Posts: 1,593
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Re: NP 205 seals
NAPA (least that's where I got mine)
Lip seals I don't have a # for, but take in one of the old ones, they should be able to match it. O-ring type (actually square cut) 1-3926 (NAPA), I had a spare and it's still sitting on my desk, lol.
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'86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold  )I'm kinda like duct tape- no real purpose, but handy to have around. |
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01-03-2010, 09:23 PM
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#3 |
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Registered User
Join Date: Dec 2009
Location: Milroy Pa
Posts: 17
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Re: NP 205 seals
I looked up the napa part number 1-3926 and it came up a big o-ring thats 4.612 I.D. thats the big o-ring for the back of the transmission i need the small one for inside the adapter that goes on the shaft. Thanks
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01-04-2010, 02:32 AM
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#4 |
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Redneck Customs Bumpers, IA
Join Date: Nov 2009
Location: Waterloo, IA
Posts: 503
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Re: NP 205 seals
I personally have never incountered a seal there, just the big o ring and rtv between the t-case housing and adapter with the trans fluid lubing the adapter but that's just my experance
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01-04-2010, 03:12 AM
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#5 |
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Registered User
Join Date: Dec 2009
Location: MI
Posts: 111
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Re: NP 205 seals
There's a seal in the adapter, I changed mine out last summer because the transmission was dumping gear oil into the transfer case.
However, mine being a 1977 with the sm465 it might not be the same part number. Try looking up under a 1980 Chevrolet half ton. 1980s all came with NP205 transfer cases. There are 2 seals for the 205. The earlier one for the smaller input shaft, and the later one for the larger input shaft.
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-Josh "Mr. Simpson, there are thousands of people like you with no discernible talent." Duff World Records Division "Yeah, they're called Congress!!" -Homer Simpson |
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01-04-2010, 03:21 AM
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#6 |
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Chevys Kick A$$
Join Date: Jan 2005
Location: Zootown, MT
Posts: 12,699
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Re: NP 205 seals
I got mine through o'reilys a couple years ago when I did mine I had the sm465 4 speed in front though.
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*HOODS is what I answer too* -'79, '77, '88 Pickup Sold, '85 Camaro, '83 T/A, '81,'83,'90 K5 Blazer All Sold  -'79 3/4 ton "Big Yellow Bananna" Lifted 4spd. 39.5 TSL Swampers, The money Pit   -'86 K5 Blazer Silverado 6.2 4" lift 35"s -'95 Ext. Cab Shorty 4" Tuff Country rolling 35" M/T's -'83 Monte Carlo T-Tops. 126,500 Original Miles -LATER  I would rather push a Chevy then drive a ford!!
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01-04-2010, 08:39 AM
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#7 |
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Senior Member
Join Date: Jun 2007
Location: Pine Ridge Florida
Posts: 4,122
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Re: NP 205 seals
There is definately a seal on the input shaft. Here is a picture of that seal. I can't remember where I got mine but this picture may help you get yours.
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Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 |
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01-04-2010, 04:37 PM
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#8 |
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Registered User
Join Date: Dec 2009
Location: Milroy Pa
Posts: 17
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Re: NP 205 seals
Yes the seal in the picture is the one im refering to i just dont know where to get it. Ive tried just looking it up and i cant find it. Thanks for the replys
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