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Old 03-14-2020, 09:56 AM
vstol vstol is offline
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Default New 12 bolt pinion seal leaks
While I was replacing the transmission and drive shaft I thought I would replace my rear pinion seal on my 12 bolt in my 72 Camaro. Well it leaks more now than when I replaced it, I will replace it again but what I'm I missing? It has been on the lift since I replaced it and it has not been out on the road does it need some road time to seal better??
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Old 03-14-2020, 10:05 AM
vstol vstol is offline
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I found this can anyone verify this

https://www.bing.com/videos/search?q...74E7&FORM=VIRE
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Old 03-15-2020, 10:14 AM
vstol vstol is offline
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On another forum they said to use the Raytech seal, anyone use those?
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Old 03-16-2020, 10:49 AM
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Quote:
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On another forum they said to use the Raytech seal, anyone use those?
Yes and it worked perfect
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Old 03-16-2020, 04:55 PM
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Well then...I’ll try the Ratech seal instead of the spacer mod.
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70 velle' on custom chassis w/custom RideTech coilovers, RED sleeved 434” with Mamo 265’s, F-body Magnum, 12 bolt 3:73, wilwood 6/4's, bla, bla, bla...build. thread https://lateral-g.net/forums/showthread.php4?t=39631
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Old 06-23-2020, 07:48 PM
Jimbo1367 Jimbo1367 is offline
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Great find. Thanks to all that have added to this thread. This should be a STICKY

Jim
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Old 03-15-2020, 09:19 PM
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Quote:
Originally Posted by vstol View Post
I found this can anyone verify this

https://www.bing.com/videos/search?q...74E7&FORM=VIRE
Seems right. I’ve put 3 new pinion seals in my 12 bolt...they all 3 leak. I am going to do a gear change soon, and I’ll try the spacer mod.
Thanks for posting this!
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70 velle' on custom chassis w/custom RideTech coilovers, RED sleeved 434” with Mamo 265’s, F-body Magnum, 12 bolt 3:73, wilwood 6/4's, bla, bla, bla...build. thread https://lateral-g.net/forums/showthread.php4?t=39631
New 434” engine build here https://ls1tech.com/forums/generatio...ved-block.html

Thanks Dad!!

My Chevelle is old school... It has a belt driven power steering pump.
They're 17's, but I keep em clean!
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Old 03-15-2020, 09:25 PM
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https://r.tapatalk.com/shareLink/top...ink_source=app

Hope that link works. I find Freddie (big gear head) is always right. He built rears for a living in his shop for like 40 years
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Old 03-16-2020, 10:49 AM
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Ratech Pinion Seals 6109, Got mine from Summit racing https://www.summitracing.com/parts/RAT-6109
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Old 08-03-2020, 07:59 AM
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I 2nd spacing the seal. I rebuild driveline for a living, this has been a problem for some time. I machined a spacer for my car years ago. Customers, I use C4 C6 square cut servo seal to space the away for the bearing.
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