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01-17-2011, 12:56 PM
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#1 |
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Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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WTT: 3 series posi for 4 series posi-12 bolt
** I purchased a 4 series and will be creating a for sale thread for my 3 series posi**
I have a 3 series factory Eaton posi that I would like to trade for a 4 series posi. Just the carrier, I don't have the complete rear. FYI: 3 series = 2.76 to 3.42 factory gears 4 series = 3.73 and numerically higher Last edited by usmcchevy; 01-21-2011 at 05:28 PM. Reason: Found one |
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01-17-2011, 01:31 PM
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#2 |
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Step Brother
Join Date: Sep 2007
Location: K-town
Posts: 4,029
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Re: WTT: 3 series posi for 4 series posi-12 bolt
Is there a easy way to tell them apart?
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01-17-2011, 01:55 PM
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#3 |
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Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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Re: WTT: 3 series posi for 4 series posi-12 bolt
Casting number. Mine is 32212. Not sure what a 4 series number is but post up what you have and I can do some research.
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01-17-2011, 03:09 PM
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#4 |
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Registered User
Join Date: Mar 2010
Location: washington
Posts: 274
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Re: WTT: 3 series posi for 4 series posi-12 bolt
im not sure but can't you use shims on the 3 series to use the 373's
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01-17-2011, 03:46 PM
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#5 | |
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Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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Re: WTT: 3 series posi for 4 series posi-12 bolt
Quote:
http://67-72chevytrucks.com/vboard/s...d.php?t=439159 |
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01-18-2011, 12:44 PM
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#6 |
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Step Brother
Join Date: Sep 2007
Location: K-town
Posts: 4,029
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Re: WTT: 3 series posi for 4 series posi-12 bolt
I will check to see what mine is!
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01-18-2011, 03:26 PM
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#7 | |
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Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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Re: WTT: 3 series posi for 4 series posi-12 bolt
Quote:
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01-18-2011, 09:13 PM
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#8 |
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Step Brother
Join Date: Sep 2007
Location: K-town
Posts: 4,029
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Re: WTT: 3 series posi for 4 series posi-12 bolt
The #'s on mine.... 30080 316 8 23 C Not sure what they mean but those are all the numbers I see on it!
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01-24-2011, 11:46 PM
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#9 |
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Registered User
Join Date: Jan 2011
Location: albq
Posts: 6
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Re: WTT: 3 series posi for 4 series posi-12 bolt
I have a 4 series for sale if someone needs one ?
thanks |
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01-25-2011, 07:44 AM
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#10 |
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The Waco Kid
Join Date: Oct 2009
Location: Waco, TX.
Posts: 1,781
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Re: WTT: 3 series posi for 4 series posi-12 bolt
What would you be asking for the 3 series?
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01-25-2011, 08:14 AM
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#11 |
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Has more rust than truck...
Join Date: Apr 2005
Location: Ivanhoe, MN
Posts: 2,421
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Re: WTT: 3 series posi for 4 series posi-12 bolt
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