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

Quick question, what is the plug on the passenger side of my 9 bolt?

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Old Aug 25, 2010 | 06:07 PM
  #1  
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From: Chicago, IL
Car: 1986 Pontiac Firebird
Engine: 97 LT1 W/ Alot of goodies.
Transmission: 4L60E W/ Yank SS3600
Axle/Gears: 3.27 9 Bolt BW
Quick question, what is the plug on the passenger side of my 9 bolt?

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It started leaking from there yesterday night after my idiotic father moved it. What is it? Is it replaceable since like I said its starting to leak from there.

I imagine since it leaked a good ammount that a fluid change would be in order, the rear was from a 88k mile T/A GTA. Any fluid reccomendations?
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Old Aug 25, 2010 | 06:14 PM
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

Looks like the vent.

JamesC
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Old Aug 25, 2010 | 06:15 PM
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

it is the vent
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Old Aug 25, 2010 | 06:17 PM
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Car: 88 Camaro
Engine: L98 350
Transmission: 700r4
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

Did he stand the rear up on end? Looks like he got lube up in the axle tube where it normally wouldn't be.
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Old Aug 25, 2010 | 06:21 PM
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Carlos773's Avatar
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Joined: Jul 2009
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From: Chicago, IL
Car: 1986 Pontiac Firebird
Engine: 97 LT1 W/ Alot of goodies.
Transmission: 4L60E W/ Yank SS3600
Axle/Gears: 3.27 9 Bolt BW
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

He left it facing upwards or where the driveshaft goes, yes.

Should the cap or top part have play with it or leak for that matter?
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Old Aug 25, 2010 | 06:27 PM
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

Yes
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Old Aug 25, 2010 | 09:22 PM
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From: ms. gulf coast
Car: 91 R/S , 89 dodge p/u
Engine: L31 GM crate re-cammed , 318
Transmission: T-5 , 4 speed auto
Axle/Gears: 3.42 , ?
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

yes it is a vent . i really do not think your father is the " IDIOT" , just my thoughts . any rear end change should be inspected and have a fluid change . there are many fluid brands to chose from , i prefer mobil 1 for cars not trucks . good luck to you & your father .
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Old Aug 26, 2010 | 01:48 PM
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Quick question, what is the plug on the passenger side of my 9 bolt?

The vent is simply the cap crimped over a fitting and yes the cap sits loose, that's where it vents through
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