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F**d 9 inch "posi" rebuild

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Old Sep 16, 2007 | 09:55 PM
  #1  
DNSTA's Avatar
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From: Brooklyn, MI
Car: 1991 Camaro RS
Engine: 355
Transmission: 700-R4
Axle/Gears: 4.10
F**d 9 inch "posi" rebuild

I recently install a ford 9 inch rear into my 1991 Camaro which I though was posi. Upon burnout inspection I see it is not. I know the third member it a posi unit so I am under the impression that the clutches are gone. My question is, can I rebuild the unit myself? I see a clutch rebuild kit on ebay for the 9 inch but I'm not sure how to tell if it's what I need. Let me know what type of info is needed to see what can be done.
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Old Sep 18, 2007 | 07:27 AM
  #2  
anesthes's Avatar
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From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: F**d 9 inch "posi" rebuild

Originally Posted by DNSTA
I recently install a ford 9 inch rear into my 1991 Camaro which I though was posi. Upon burnout inspection I see it is not. I know the third member it a posi unit so I am under the impression that the clutches are gone. My question is, can I rebuild the unit myself? I see a clutch rebuild kit on ebay for the 9 inch but I'm not sure how to tell if it's what I need. Let me know what type of info is needed to see what can be done.
There is nothing easier to rebuilt than a ford 9". All you need is wrenches and some grease.

A mag base would be 'proper', but not needed.


-- Joe
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Old Sep 18, 2007 | 08:45 AM
  #3  
DNSTA's Avatar
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From: Brooklyn, MI
Car: 1991 Camaro RS
Engine: 355
Transmission: 700-R4
Axle/Gears: 4.10
Re: F**d 9 inch "posi" rebuild

So there will be no pinion angle, crush bearing, gear wear pattern to setup if I rebuild the posi clutches?
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Old Sep 18, 2007 | 09:35 AM
  #4  
anesthes's Avatar
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Joined: Jul 1999
Posts: 12,093
Likes: 126
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: F**d 9 inch "posi" rebuild

Originally Posted by DNSTA
So there will be no pinion angle, crush bearing, gear wear pattern to setup if I rebuild the posi clutches?
Pinion angle? no.

Backlash is adjustable. Pinion depth is easy. You'll basicaly have it apart once or twice, three times tops until you get a good pattern. and it's all done on a work bench. then you pop the pumpkin back in the housing.

-- Joe
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Old Sep 18, 2007 | 11:11 AM
  #5  
DNSTA's Avatar
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From: Brooklyn, MI
Car: 1991 Camaro RS
Engine: 355
Transmission: 700-R4
Axle/Gears: 4.10
Re: F**d 9 inch "posi" rebuild

Sounds good. So I assume the ebay clutch kit should be what I need or were there different types of limited slip used in these rears?
----------
Oh, one more thing. If all I am doing is replacing the clutches, will anything really need to be reset? I haven't got into it yet so I realize these questions may answer themselves but I appreciate the advice.

Last edited by DNSTA; Sep 18, 2007 at 11:14 AM. Reason: Automerged Doublepost
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Old Sep 19, 2007 | 01:23 PM
  #6  
DNSTA's Avatar
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From: Brooklyn, MI
Car: 1991 Camaro RS
Engine: 355
Transmission: 700-R4
Axle/Gears: 4.10
Re: F**d 9 inch "posi" rebuild

ttt
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