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

CANT TELL IF MY B/W 2.77 IS POSI ....

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Old Mar 14, 2011 | 11:22 PM
  #1  
DRIVE2FAST's Avatar
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Posts: 598
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From: PHOENIX/ TOLLESON ARIZONA
Car: 90 IROC 5.7 1LE CLONE 89 GTA 88IROC
Engine: 5.7TPI / 5.7TPI/ 5.7TPI/ 4.3 CMFI
Transmission: 700R4 UPGRADED 700R4STOCK700R4STOCK
Axle/Gears: 3.23 10 BOLT 3.27 9 BOLT 2.77 9BOLT
CANT TELL IF MY B/W 2.77 IS POSI ....

IM 80% SURE THIS REAR END IS POSI-TRACTION. KAN ANYONE LOOK AT THIS AND GIVE A YES OR NO. SEE ATTACHED PICS. THERE ARE NO SPRINGS VISIBLE THRU THE 180 DEGREE OFFSET WINDOWS IN THE DIFFERENTIAL HUB . ALL I SEE ARE SMALL BEVEL GEARS. ITS A BORG WARNER 2.77 9 BOLT P/N 10040660 SER NO 11742
Attached Thumbnails CANT TELL IF MY B/W 2.77 IS POSI ....-100_1111.jpg   CANT TELL IF MY B/W 2.77 IS POSI ....-100_1112.jpg   CANT TELL IF MY B/W 2.77 IS POSI ....-100_1116.jpg  
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Old Mar 14, 2011 | 11:56 PM
  #2  
UnderCover89TBI's Avatar
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From: Manteca,California. Nor Cal.
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: CANT TELL IF MY B/W 2.77 IS POSI ....

do the axles turn the same direction? if they do its posi.
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Old Mar 15, 2011 | 12:03 AM
  #3  
DRIVE2FAST's Avatar
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Joined: Sep 2009
Posts: 598
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From: PHOENIX/ TOLLESON ARIZONA
Car: 90 IROC 5.7 1LE CLONE 89 GTA 88IROC
Engine: 5.7TPI / 5.7TPI/ 5.7TPI/ 4.3 CMFI
Transmission: 700R4 UPGRADED 700R4STOCK700R4STOCK
Axle/Gears: 3.23 10 BOLT 3.27 9 BOLT 2.77 9BOLT
Re: CANT TELL IF MY B/W 2.77 IS POSI ....

YES THEY DO WHEN YOU SPIN THE PINION. THANX.
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Old Mar 15, 2011 | 01:42 AM
  #4  
Keoman's Avatar
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Joined: Nov 2007
Posts: 845
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From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: CANT TELL IF MY B/W 2.77 IS POSI ....

"posi" indeed.
Just FYI, its not all that good to have your vin number in your signature, IMO..
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Old Mar 15, 2011 | 08:16 AM
  #5  
DJP87Z28's Avatar
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: CANT TELL IF MY B/W 2.77 IS POSI ....

Originally Posted by DRIVE2FAST
IM 80% SURE THIS REAR END IS POSI-TRACTION. KAN ANYONE LOOK AT THIS AND GIVE A YES OR NO. SEE ATTACHED PICS. THERE ARE NO SPRINGS VISIBLE THRU THE 180 DEGREE OFFSET WINDOWS IN THE DIFFERENTIAL HUB . ALL I SEE ARE SMALL BEVEL GEARS. ITS A BORG WARNER 2.77 9 BOLT P/N 10040660 SER NO 11742
Yes it is a Limited Slip 9-bolt rear. Different system then the 10-bolts.
LSD/posi= are the same.
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Old Mar 15, 2011 | 11:15 AM
  #6  
DRIVE2FAST's Avatar
Thread Starter
Senior Member
 
Joined: Sep 2009
Posts: 598
Likes: 2
From: PHOENIX/ TOLLESON ARIZONA
Car: 90 IROC 5.7 1LE CLONE 89 GTA 88IROC
Engine: 5.7TPI / 5.7TPI/ 5.7TPI/ 4.3 CMFI
Transmission: 700R4 UPGRADED 700R4STOCK700R4STOCK
Axle/Gears: 3.23 10 BOLT 3.27 9 BOLT 2.77 9BOLT
Re: CANT TELL IF MY B/W 2.77 IS POSI ....

ANYBODY CAN GET IT OFF YOUR WINDSHIELD DATA PLATE. THE DMV HAS IT. I FIGURED NO HARM. WHAT POSSIBLE NEGATIVES DO U SEE FROM IT....I CANT THINK STRAIGHT I BEEN UP ALL NITE TRYING TO FINISH MY REAR END .
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