C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What about the ZF-6 makes it work?

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Old Nov 17, 2004 | 02:36 PM
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Default What about the ZF-6 makes it work?

Every car I have ever driven you can forget about shifting into reverse if there is ANY forward motion at all. Most cars will easily let you go the other way though. The ZF on the other hand works perfectly. I can be in a parking lot, moving somewhat slowly and put it into reverse while still moving forward slightly and it never makes a noise.

Most tranny's will grind like crazy. Is reverse synchronized too on these things?
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Old Nov 17, 2004 | 02:59 PM
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Old Nov 17, 2004 | 03:07 PM
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Yes, reverse is synchronized.
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Old Nov 17, 2004 | 03:11 PM
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Originally Posted by JasonL
Yes, reverse is synchronized.
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Old Nov 17, 2004 | 03:52 PM
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Seems strange that they would go through the extra expense.
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Old Nov 17, 2004 | 03:55 PM
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They're Germans, it's their job to be ****.
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Old Nov 17, 2004 | 03:58 PM
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Originally Posted by HammerDown
They're Germans, it's their job to be ****.
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Old Nov 17, 2004 | 03:59 PM
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Originally Posted by HammerDown
They're Germans, it's their job to be ****.
[cheesy German accent]Ve have vays of making it better.[/cheesy German accent]
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Old Nov 17, 2004 | 04:58 PM
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Originally Posted by bogus
[cheesy German accent]Ve have vays of making it better.[/cheesy German accent]
Funniest thing I've read all week!
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Old Nov 17, 2004 | 05:15 PM
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Originally Posted by Perfusion
Funniest thing I've read all week!
Then you didn't see the one about the st. bernard and the poodle in OT?
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Old Nov 17, 2004 | 05:46 PM
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A few years ago I bought a 91 Stealth RT/Twin Turbo (before you flame, it's gone and I have a 94 Vette now!). Long story short, the tranny and transfer case went south. Both were ZF components.

When I looked in the service manual, I found detailed instructions on tearing apart, fixing, and rebuilding the auto transmission and the 5-spd (non-ZF) for the base cars. However, when you turned to the section on the ZF 5 spd transmission, all it said was "non-serviceable component. Replace".

Dave
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Old Nov 17, 2004 | 06:41 PM
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Originally Posted by Nathan Plemons
Seems strange that they would go through the extra expense.
maybe because it's a truck trans? (i have no idea, just brainstorming)
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Old Nov 17, 2004 | 08:12 PM
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If it's a truck trans I'm suprised it's synchronized at all!
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Old Nov 17, 2004 | 08:13 PM
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Well I must have a bad one then. I have a 96 CE LT4 and If I try to go direct to reverse it will grind really bad sometimes. Before going into reverse I have to shift through 4th and 5th several times and then very gently put it into reverse. Even that doesn't always work and I will get a slight grind. I have a friend with a CE and a Grand Sport and he has to go through pretty much the same routine to get into reverse.
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Old Nov 17, 2004 | 08:15 PM
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Well I must have a bad one then. I have a 96 CE LT4 and if I try to go direct to reverse it will grind really bad sometimes. Before going into reverse I have to shift through 4th and 5th several times and then very gently put it into reverse. Even that doesn't always work and I will get a slight grind. I have a friend with a CE and a Grand Sport and he has to go through pretty much the same routine to get into reverse in either of them.
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Old Nov 17, 2004 | 08:48 PM
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Originally Posted by DaveN355
A few years ago I bought a 91 Stealth RT/Twin Turbo (before you flame, it's gone and I have a 94 Vette now!). Long story short, the tranny and transfer case went south. Both were ZF components.

When I looked in the service manual, I found detailed instructions on tearing apart, fixing, and rebuilding the auto transmission and the 5-spd (non-ZF) for the base cars. However, when you turned to the section on the ZF 5 spd transmission, all it said was "non-serviceable component. Replace".

Dave
sure that they were ZF? I read long time ago those were Getrag... and this site confirms it... Stealth Transmission Specs
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Old Nov 17, 2004 | 08:57 PM
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Originally Posted by scorned1
Well I must have a bad one then. I have a 96 CE LT4 and if I try to go direct to reverse it will grind really bad sometimes. Before going into reverse I have to shift through 4th and 5th several times and then very gently put it into reverse. Even that doesn't always work and I will get a slight grind. I have a friend with a CE and a Grand Sport and he has to go through pretty much the same routine to get into reverse in either of them.
Replace clutch master & slave. See zf doc web site.
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Old Nov 17, 2004 | 09:04 PM
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That's what cured mine
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