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stuper01
Dodge Dakota
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12/07/2004
15:16:48
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 Subject: posi not working
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Message:
do you guys have any idea why my posi unit doesnt work all that well... it is a dodge unit, but installed after i purchased my truck. i used synthetic fluid when i put it in... on slippery surfaces, when one tire has grip. i get a low howling noise, and only one tire spins...
whats up with that?!?!??!?
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needmore info
Dodge Dakota
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12/07/2004
15:41:56
| RE: posi not working
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Message:
Did you buy it new or used ? Did it work when first installed ? By the way, "posi" is a Chevy term - you have a "sure grip" or "limited slip". When these types of rears are worn out, they revert to peg leg.
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stuper01
Dodge Dakota
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12/07/2004
15:44:08
|  RE: posi not working
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Message:
it was new from dodge.... got it as a "warranty replacement" from a buddy.. heehee. it seemed to work ok at first but not for long. do you think the synthetic fluid could have anything to do with it?
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Zach
Dodge Dakota
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12/07/2004
16:28:09
|  RE: posi not working
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Message:
The synthetic fluid wouldnt matter, but did you add the friction modifier?
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stuper01
Dodge Dakota
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12/07/2004
16:31:39
| RE: posi not working
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Message:
i don't know... i had it insatlled at a garage. wouldnt that make it stick more? making hopping around corners?
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Joe X
Dodge Dakota
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12/07/2004
16:41:29
| RE: posi not working
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Message:
Using synthetic fluid won't hurt it unless you forget to add friction modifier. Without the friction modifier, it'll work great for a while, but the clutch plates wear down fast. After that happens, as you're finding out, all you have left is the equivalent of an "open" differential.
RTFM dude, RTFM.
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tractorfix
Dodge Dakota
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12/07/2004
21:10:48
| RE: posi not working
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Message:
Time to get out the arc welder and make a "Uxbridge Locker".
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first mistake
Dodge Dakota
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12/11/2004
04:46:48
| RE: posi not working
IP: Logged
Message:
i had it insatlled at a garage
that was your first mistake
i used synthetic fluid
that was your second, not using DC factory fluid
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Mike S.
Dodge Dakota
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12/11/2004
05:20:45
| RE: posi not working
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Message:
I'm having the exact same problem with mine. I installed gears and a "Mopar" sure-grip about 15000 miles ago. I've noticed that when the roads are wet it wants to go back to a peg leg when turning corners. I used Mobile 1 gear oil with "Autozone" brand friction modifier. Not too happy about my situation either so I feel your pain.
Mike S.
97cc 6er 3.92 sure-grip(some times)
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Dr. D
Dodge Dakota
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12/11/2004
08:47:04
| RE: posi not working
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Message:
Synthetic is fine but make SURE that you use the friction
modifier too and, make sure you fill it to the proper level.
I use the Severe Gear 75w-140 and the Slip Lock additive from
Amsoil due to the fact that I do some serious towing.
Dr. D
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tractorfix
Dodge Dakota
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12/11/2004
19:00:30
| RE: posi not working
IP: Logged
Message:
A sure grip is not a locker. It is only a clutch. If the drive wheels have very different traction conditions, and one wheel is allowed to spin up, it will fry it really fast. Booting it around corners will also destroy it. Drive tires of different circumferences(one worn, one new) will fry it.
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