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Posi Unit question

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Old Oct 20, 2014 | 09:06 AM
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Default Posi Unit question

Hey guys, Im pretty sure my rear posi unit went out in my car. It pops and jumps and just doesn't act right. Its a 4 channel abs with tcs, can Is there a specific unit I have to buy for it or will any 10 bolt 7.5 unit work in it?
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Old Oct 20, 2014 | 11:54 AM
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for what kind of car and what year ?????
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Old Oct 20, 2014 | 12:25 PM
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2000 firebird formula
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Old Oct 20, 2014 | 12:55 PM
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a 2000 would have had a Torsen posi(99-02),98 and earlier would have had Auburn.
you really need to supply more info !!!
M6 or A4 ???
M6 3.42 would have a 3 series carrier/posi.
A4 2.73 would be a 2 series carrier/posi,A4 3.23 would be a 3 series carrier/posi.
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Old Oct 20, 2014 | 01:26 PM
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Yes, in general any 7.5 unit will work. However, you need to know the series you have so you can buy/get the right one to match your gearset.
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Old Oct 20, 2014 | 01:44 PM
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m6,.... I have available a 96 or 97 10 bolt out of a m6 car,
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Old Oct 20, 2014 | 02:20 PM
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So you're looking for a 3 series.
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Old Oct 20, 2014 | 06:37 PM
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If you don't plan on abusing the car too much where it get to the point of not worthy of investing more into the 10 bolt as a whole, then you may consider spending the cash to get into a good unit like the Eaton clutch type. Very good diff unit and is rebuildable if need be. With the 4ch abs system the swap out will be pretty easy.
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Old Oct 20, 2014 | 08:52 PM
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Well I actually have a ford 9" also, but Im going to fix this rear and sell the car to fund my 2010 camaro ss. ;\ its a love hate type deal. Love my f body but dang I love the camaro too.
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