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How bad is the Govlock posi?

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Old Feb 5, 2006 | 09:30 PM
  #1  
Dialed_In's Avatar
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
How bad is the Govlock posi?

I know they've got a bad rep, but can they be improved? I picked up a rear thats got one in it. Before I get a takeout Torsen or Auburn I figured I'd see what I can do with the one I've got.
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Old Feb 6, 2006 | 12:49 AM
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From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
They're junk, plain and simple. I've never seen one work properly.
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Old Feb 6, 2006 | 01:38 AM
  #3  
84 Z-28 350's Avatar
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From: Houston TX
Car: 84 Z-28 Camaro, 2022 2500 silverado
Engine: 383
Transmission: T-56
Axle/Gears: richmond 3.73, eaton posi
they explode...there's wieghts in them and if the diff spins too fast or it gets stressed (like one tire spinning on ice) they blow off...I've seen it happen...right through the diff. cover and into the gas tank of a malibu. they are garbage
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Old Feb 6, 2006 | 07:06 AM
  #4  
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From: Lower Salford, PA
Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
I have one in my 2004 Silverado. It acts like an open rear most of the time. When it does finally engage, it is very abupt & usually causes both wheels to spin. Fortunatly I don't hammer this vehicle since it's my daily driver. Having one in my 383 Camaro would be a nightmare, until it broke.
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Old Feb 6, 2006 | 07:15 AM
  #5  
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From: Lower Salford, PA
Car: 1987 Camaro Z-28
Engine: 6.3L Victor EFI
Transmission: Tremec TKO 600
Axle/Gears: Moser 9"/4.11 Trac-Lok
Take a look at #12. Imagine what happens when that little dog catches at speed & breaks the case
Attached Thumbnails How bad is the Govlock posi?-gov-lok-rear.jpg  
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Old Feb 6, 2006 | 09:46 AM
  #6  
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
In the garbage. Thanks
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Old Feb 6, 2006 | 11:10 AM
  #7  
84 Z-28 350's Avatar
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From: Houston TX
Car: 84 Z-28 Camaro, 2022 2500 silverado
Engine: 383
Transmission: T-56
Axle/Gears: richmond 3.73, eaton posi
that's the pice that ended up in the gas tank
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Old Feb 6, 2006 | 08:58 PM
  #8  
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From: K.C. Mo.
Car: '89 GTA 9,000 MILES
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Imagine my surprise when I ordered a "limited slip" rearend in my '95 S10. I assumed it would be an Auburn cone type or something similiar to what GM put in our cars. NOOOOOO.

Thanks, GM. It gets stuck in my back gravel driveway with barely an incline and that was when it was nearly new. POS .. IMO.....
I haven't broke out the price sheet from where I ordered it but I bet I paid more than an aftermarket CORRECT limited slip would have cost.
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Old Feb 8, 2006 | 05:56 PM
  #9  
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From: Marietta, GA
Car: '91 Firebird Convertible
Engine: 305 TBI (LO3)
Transmission: 700r4, Vette Servo
Axle/Gears: 3.27 9 Bolt, PBR disks
Can I ask a dumb question? What is a gov-lock posi?

Was it standard on any third gens?
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Old Feb 8, 2006 | 06:38 PM
  #10  
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From: K.C. Mo.
Car: '89 GTA 9,000 MILES
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Originally posted by Cadillac
Can I ask a dumb question? What is a gov-lock posi?

Was it standard on any third gens?
NEVER on the THIRDGENS, only GM pickups had this POS.
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Old Feb 8, 2006 | 09:52 PM
  #11  
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Originally posted by Jetmeck
NEVER on the THIRDGENS, only GM pickups had this POS.
My GM van has almost 300,000 on the original GOV-Lock. It is just like others have stated, junk for traction. It will let the right rear spin, lock abruptly, then break the left one loose, complete with the rear-end sway.
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Old Feb 9, 2006 | 06:46 PM
  #12  
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From: K.C. Mo.
Car: '89 GTA 9,000 MILES
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Originally posted by Jetmeck
NEVER on the THIRDGENS, only GM pickups had this POS.
And vans and any utility/suv type of vehicle had these too.
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Old Feb 15, 2006 | 06:35 PM
  #13  
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Joined: Feb 2004
Posts: 64
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From: Southern Maine
Car: 85' IROC & 87' IROC conv
Engine: Both have Vortec TPI 350
Transmission: T-50
Axle/Gears: 3:42 & 3:73
I am original owner of an 85' IROC TPI 5.0 auto with 10 bolt 3:42 rear and it came factory with a gov lock, after 49K it was still working properly but it now resides in the "retired pile"
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