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01-13-2007, 03:32 PM
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#1
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11 Second Club
Join Date: Jan 2005
Location: Fishkill, NY
Posts: 1,278
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Rear Diff's......
Think mine is ailing, what do you guys think if I have to replace it, Detroit True-trac or Auburn pro-series (going in a moser 12 bolt)
__________________
-Nick
9/11/01- Never Forget
2002 Pontiac Trans-Am WS6 # 206
Chasing 10's
469RWH/437RWTQ
11.05 @ 123
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01-13-2007, 04:08 PM
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#2
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,695
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i heard excellent things about the true-trac.... no personal experience though. i would run the true trac personally if i had a 12 bolt 
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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01-13-2007, 05:31 PM
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#3
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Why not an Eaton?
I would definetly skip the Auburn.
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01-13-2007, 09:23 PM
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#4
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Join Date: Dec 2005
Location: Mount Holly, NJ
Posts: 242
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I was into getting a true-trac for a while, but I opted for an Eaton in my twelve bolt. The Eaton works just fine excet that you have to replace the clutches. The true-trac is maintenance free since it is worm gear driven and has no consumable parts. Both units do exactly the same thing though.
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'81 Sport Coupe 229 V6 -Junked
'93 Z28 LT1 - Parting out
"Is that a rat? No, it's just a really fat mouse."
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01-14-2007, 09:06 AM
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#5
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11 Second Club
Join Date: Jan 2005
Location: Fishkill, NY
Posts: 1,278
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Because I have an Eaton now and it will have to be rebuilt. And I am not particularly happy with it's durability or performance, but that is an option also. Also the Eaton and the true trac work in opposite ways. The True-trac stays locked until it needs to release a wheel in the turn, where the Eaton is a standard limited slip Diff.
__________________
-Nick
9/11/01- Never Forget
2002 Pontiac Trans-Am WS6 # 206
Chasing 10's
469RWH/437RWTQ
11.05 @ 123
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01-14-2007, 09:56 AM
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#6
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Join Date: Jan 2005
Location: boonton
Posts: 639
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i have a true tac in my 9". im more than happy with it. i heard that they can withstand alot of abuse
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01-14-2007, 09:57 AM
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#7
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by Batman
Because I have an Eaton now and it will have to be rebuilt. And I am not particularly happy with it's durability or performance, but that is an option also. Also the Eaton and the true trac work in opposite ways. The True-trac stays locked until it needs to release a wheel in the turn, where the Eaton is a standard limited slip Diff.
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Well, if you decide to dump the eaton and it's a 33 spline 4 series unit let me know 
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01-14-2007, 02:35 PM
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#8
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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Eaton is definately a good choice, go auburn pro-series if you wanna save a few bucks.
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01-14-2007, 07:09 PM
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#9
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NJFBOA Supporting Sponsor
Join Date: Feb 2006
Location: HULMEVILLE, PA
Posts: 2,023
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Auburn= junk
Eaton= Better
Tru Trac= best for the street in a 12 bolt.
__________________
JSSPEEDANDCUSTOM.COM
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01-14-2007, 07:40 PM
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#10
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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i have always had good luck with auburn diffs. they handle side loading and handling applications better than most and they easy to freshen/rebuil when the friction materials get worn.
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01-15-2007, 07:39 AM
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#11
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NJFBOA Supporting Sponsor
Join Date: Feb 2006
Location: HULMEVILLE, PA
Posts: 2,023
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If you make any type of serious power the Auburns grenade I have a box of schrapnel of you want to see it..
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JSSPEEDANDCUSTOM.COM
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01-15-2007, 11:17 AM
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#12
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Join Date: Dec 2005
Location: Mount Holly, NJ
Posts: 242
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Quote:
Originally Posted by Batman
Also the Eaton and the true trac work in opposite ways. The True-trac stays locked until it needs to release a wheel in the turn, where the Eaton is a standard limited slip Diff.
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What I meant was that both are limited slip units that transmit equal power to the drive wheels 
__________________
'81 Sport Coupe 229 V6 -Junked
'93 Z28 LT1 - Parting out
"Is that a rat? No, it's just a really fat mouse."
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