Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Posi spider gears HELP

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Old Apr 26, 2009 | 03:54 PM
  #1  
seiplentz's Avatar
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From: Delco pa
Car: 85 Z28
Engine: GMPP 350 HSR
Transmission: 700R4
Axle/Gears: 4th gen 3.42 Posi LS1
Posi spider gears HELP

I was replacing my axles due to one was bent. After I slid the new axles in I turned the flange to move the carrier into position to install the c-clips then I noticed the spider gears have moved out out of alignment for the crosspin.

Its a 4th gen rear with the auburn style posi. How do line it all back up without pulling the carrier out or making things pop out that shoulden't.
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Old Apr 26, 2009 | 04:00 PM
  #2  
seiplentz's Avatar
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20 Year Member
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Joined: May 2003
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From: Delco pa
Car: 85 Z28
Engine: GMPP 350 HSR
Transmission: 700R4
Axle/Gears: 4th gen 3.42 Posi LS1
Re: Posi spider gears HELP

A few pics
Attached Thumbnails Posi spider gears HELP-dscf0097.jpg   Posi spider gears HELP-dscf0098.jpg  
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Old Apr 26, 2009 | 04:55 PM
  #3  
big gear head's Avatar
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Re: Posi spider gears HELP

Get the differential in position so that you can work inside it and put the transmission in park. This will keep it from turning. Then turn the axle in the direction that you want the gears to move and line them up. You shouldn't have much trouble with the Auburn. The early Eaton was a real pain because the thrust washers would fall out and it was a little hard to get them back in.
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Old Apr 26, 2009 | 05:11 PM
  #4  
seiplentz's Avatar
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Member
20 Year Member
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Joined: May 2003
Posts: 445
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From: Delco pa
Car: 85 Z28
Engine: GMPP 350 HSR
Transmission: 700R4
Axle/Gears: 4th gen 3.42 Posi LS1
Re: Posi spider gears HELP

Thanks!! that was sort of what I was going to try but I just wanted to sure that there wasnt anything else that could have moved inside the posi that was going to give me an issue. Because it looks like the gear is against one of the plates.

I have had nothing but problems since I started with this rear. If I have one more Im about to just buy a 12 bolt or 9 inch from spohn.
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Old May 2, 2009 | 07:38 PM
  #5  
seiplentz's Avatar
Thread Starter
Member
20 Year Member
iTrader: (2)
 
Joined: May 2003
Posts: 445
Likes: 6
From: Delco pa
Car: 85 Z28
Engine: GMPP 350 HSR
Transmission: 700R4
Axle/Gears: 4th gen 3.42 Posi LS1
Re: Posi spider gears HELP

What you said worked like a champ. Was able to put back together in a couple of hours and back on the road. Thanks again.
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Old May 3, 2009 | 05:09 PM
  #6  
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Re: Posi spider gears HELP

Great! Glad to help.
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Old Jan 27, 2012 | 04:38 PM
  #7  
Tinoco17's Avatar
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Joined: Apr 2010
Posts: 54
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From: Fresno Ca
Car: 1992 convertible camaro 1992 z28
Engine: 305 tbi 5.0 tpi
Transmission: 700r4 700r4
Axle/Gears: 2:73 2:73
Re: Posi spider gears HELP

Hi have same problem but can't move The axle on park
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Old Jan 27, 2012 | 04:49 PM
  #8  
TheMonster's Avatar
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Joined: Jun 2009
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From: Evansville, IN
Car: 1983 Z28
Engine: Forged 355
Transmission: 700r4
Axle/Gears: 2.73
Re: Posi spider gears HELP

Originally Posted by Tinoco17
Hi have same problem but can't move The axle on park
You have to put it in gear or neutral, other wise it won't turn
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