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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Speedi Sleeve

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Old Apr 19, 2010 | 12:14 PM
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Default Speedi Sleeve
Anybody try one on a pinion yoke?
Last edited by stburgpete; Apr 19, 2010 at 12:22 PM.
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Old Apr 19, 2010 | 12:24 PM
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Originally Posted by stburgpete
Anybody try one on a pinion yoke?
They work
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Old Apr 19, 2010 | 12:31 PM
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Originally Posted by FASTFATBOY
They work
did it stop the pinion leak
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Old Apr 19, 2010 | 01:14 PM
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If you have the stock rear end, they all leak. You cant stop it from leaking around the pinion seal.
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Old Apr 19, 2010 | 01:22 PM
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Originally Posted by FASTFATBOY
If you have the stock rear end, they all leak. You cant stop it from leaking around the pinion seal.
Thats cool. As long as the groves are gone and it stops slinging gear oil every where.
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Old Apr 19, 2010 | 02:28 PM
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Originally Posted by stburgpete
Thats cool. As long as the groves are gone and it stops slinging gear oil every where.
It will stop that yes.
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Old Apr 21, 2010 | 09:30 PM
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Well got the speedi sleeve in and pinion seal and no leaks so far. I will be saving for a 9 or 12 any favorites? Pros and cons would help thanks.
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Old Apr 21, 2010 | 09:43 PM
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If you have a six speed and you are gonna beat on it at the track get a 9 inch, otherwise a 12 bolt.
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Old Apr 21, 2010 | 09:49 PM
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Or if you're crafty, do a 7.5/8.8 hybrid (cheap alternative to an after market rear that will surely out-last a factory 10 bolt if setup correctly).
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Old Apr 21, 2010 | 09:52 PM
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^^^x2, have one in the works and about a week away from finding out if im any good at building rearends
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Old Apr 21, 2010 | 10:30 PM
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I've had 3 12 bolts and they all have had leaky pinion seals. It is what it is.
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Old Apr 22, 2010 | 09:14 AM
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Originally Posted by fergymoto
I've had 3 12 bolts and they all have had leaky pinion seals. It is what it is.
That alone is a reason not to get a 12, I hate leaky pinion seals.
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Old Apr 22, 2010 | 09:24 AM
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If you want the car to be fast, buy what you need. I got a buddy with a 700 rwhp Z28 with a 12 bolt and a six speed his has never leaked. He beats the crap out it on the street.

A nine inch will slow the typical F body down over a 12 bolt with weight and drivetrain loss.

If you are not gonna be running in the low 1.40 sixty foots or quicker in a 3600lb+ car, have a six peed car that you are gonna launch at 5500 rpm on slicks you dont NEED a nine inch IMO.

There are guys running tens on the 7.5 stock rear.

My car would be quicker with a 12 bolt.
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