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

Transmission Tailshaft Seal - Leaking

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Old Jul 21, 2009 | 07:11 AM
  #1  
camaro1185's Avatar
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From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Transmission Tailshaft Seal - Leaking

Mine seems to be leaking (about 2 dime sizes ever week). Are they hard to replace? Do i need to drop the tranny to do it? Should i replace the seal or the bearing too? Do i need any special tools to do the job?

Any help would be appreciated.
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Old Jul 22, 2009 | 08:47 AM
  #2  
camaro1185's Avatar
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From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Re: Transmission Tailshaft Seal - Leaking

Anyone? can i just for the time being put a small bead of silicone around the tailshaft to prevent it from leaking?
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Old Jul 22, 2009 | 09:22 AM
  #3  
iroc a 86 berli's Avatar
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From: south of kansas city
Car: 86 berlinetta 92rs gfx
Engine: 4 bolt 384 stroker
Transmission: th350 4000 stall manual/T brake
Axle/Gears: 87 iroc 9 bolt
Re: Transmission Tailshaft Seal - Leaking

pull the drive shaft, take an 13mm- 15mm open end wrench and get part of the wrench behind the seal, pop it out. use a big socket the size of the new seal and hammer it in lightly till its seated properly.
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Old Jul 22, 2009 | 09:34 AM
  #4  
camaro1185's Avatar
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Joined: Apr 2006
Posts: 685
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From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Re: Transmission Tailshaft Seal - Leaking

Originally Posted by iroc a 86 berli
pull the drive shaft, take an 13mm- 15mm open end wrench and get part of the wrench behind the seal, pop it out. use a big socket the size of the new seal and hammer it in lightly till its seated properly.
Sweet, seems pretty easy. I take it i will have to drain the fluid first?
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Old Jul 22, 2009 | 10:25 AM
  #5  
iroc a 86 berli's Avatar
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Joined: Mar 2007
Posts: 586
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From: south of kansas city
Car: 86 berlinetta 92rs gfx
Engine: 4 bolt 384 stroker
Transmission: th350 4000 stall manual/T brake
Axle/Gears: 87 iroc 9 bolt
Re: Transmission Tailshaft Seal - Leaking

put a drip pan down, very little fluid will leak out.
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Old Jul 22, 2009 | 02:26 PM
  #6  
jv9999's Avatar
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From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: Transmission Tailshaft Seal - Leaking

Be sure to put a little oil on the driveshaft yoke so your new seal is lubricated on start-up.
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Old Jul 22, 2009 | 02:50 PM
  #7  
camaro1185's Avatar
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Joined: Apr 2006
Posts: 685
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From: CT
Car: 1988 Iroc
Engine: 5.7L
Transmission: '96 T56, Hurst Shifter, Mech VSS
Axle/Gears: 3.45 9 Bolt
Re: Transmission Tailshaft Seal - Leaking

Originally Posted by jv9999
Be sure to put a little oil on the driveshaft yoke so your new seal is lubricated on start-up.

Good to know, thanks!
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Old Feb 11, 2014 | 10:49 PM
  #8  
IROCgiraffe's Avatar
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Posts: 725
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From: SC
Car: '87 IROC-Z | '99 SS
Engine: LB9 | LS1
Transmission: 700R4 | T56
Re: Transmission Tailshaft Seal - Leaking

Can anyone post the name of this seal, and/or the part #?
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Old Feb 11, 2014 | 11:02 PM
  #9  
Ransford2987's Avatar
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Joined: Feb 2013
Posts: 346
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From: Tampa
Car: 1990 IROC-Z/1980 Firebird
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.27
Re: Transmission Tailshaft Seal - Leaking

This is the one I used, and the part number is there. I'm sure there are plenty of other names for it, but this is all you have to search for. http://www.autozone.com/autozone/par...0_3498%2C10492
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