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Old 04-02-2013, 09:55 PM   #1
kdml
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Join Date: Jan 2013
Location: Richmond, VT
Posts: 34
Is this an NP208?

Picked up an '83 K20 with an '87 drivetrain over the winter. Now that the weather is warming I can begin to fix a few issues. The transfer case leaks where the front driveshaft mounts, so I need a new seal. The prior owner told me it had an NP203. I looked underneath and it looked more like an NP208. I looked at the tag on the case and it appears to read NP203 or NP208 with half the 8 worn away. So, before I order any parts I figured I would snap a picture and get confirmation from the experts - this is an NP208 correct?

Thanks
Doug
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Old 04-02-2013, 10:01 PM   #2
83GMCK2500
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Location: Beaverton, OR from WA State
Posts: 1,515
Re: Is this an NP208?

Yes, 208. 203 & 205 are cast iron.
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Devin

1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050
1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350

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Old 04-02-2013, 10:11 PM   #3
kdml
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Re: Is this an NP208?

Thanks

That is what I thought
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