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

Will this cause rough/notchy zf6 gear changes?

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Old Mar 29, 2024 | 08:18 PM
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Exactly. I have never heard of anyone move away from the ram setup.
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Old Apr 10, 2024 | 10:45 PM
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Unbelievable
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Old Apr 11, 2024 | 06:42 AM
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Originally Posted by 1993C4LT1

Unbelievable
Geez you have been going through the ringer for sure. I must be missing something though didn't Bill send you this message?

Why is he still blaming the flywheel or RAM setup at this point. He confirmed no vibrations with engine spinning without the transmission, driveshaft or differential in this text. I would think any vibration faults from this point would be in the transmission, driveshaft or Diff. And another thing that is odd is that he is changing a detent ball and spring in the shifter of the transmission. Didn't he just rebuild your transmission? I am truly sorry you are going through this!
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Old Apr 11, 2024 | 07:58 AM
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Yes, on everything. But, he said after the new plugs and wires, the "vibration is still there after road testing the car". Let me see if I can find that text, where he says that. Here it is. I kind of want to just say to put my car back together. Charge me whatever I owe you. And I'll arrange shipping. I ******* love late year zf6 c4's. But, this whole experience makes me want to leave these cars. He said he changed the detent ball to "improve shifting".

Last edited by 1993C4LT1; Apr 11, 2024 at 08:12 AM.
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Old Apr 11, 2024 | 08:03 AM
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His latest reply. And my latest response.
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Old Apr 11, 2024 | 08:21 AM
  #66  
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He's had my car since February 11, 2024. I was hoping to have it back by now. Spring is here. I want to enjoy my car. Sorry for venting, guys.
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Old Apr 11, 2024 | 10:20 AM
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has the trans been swapped out yet to verify the trans isnt the root cause?

maybe its a stretch but ive got to assume he has a spare kicking around
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Old Apr 11, 2024 | 10:32 AM
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No, he hasn't. But that is a good suggestion. Though, I doubt he'll doubt that is the issue, or worth trying. I will mention it to him.
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Old Apr 11, 2024 | 04:39 PM
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Originally Posted by VikingTrad3r
has the trans been swapped out yet to verify the trans isnt the root cause?

maybe its a stretch but ive got to assume he has a spare kicking around
​​​​
Exactly
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Old Jun 2, 2024 | 02:51 PM
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Just curious if you got your car squared away ?
Hopefully !
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Old Jun 3, 2024 | 07:38 AM
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So far, so good. I got the car back on May 15th. I have only put about 120 miles on it so far.
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Old Jun 3, 2024 | 07:41 AM
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Originally Posted by 1993C4LT1
So far, so good. I got the car back on May 15th. I have only put about 120 miles on it so far.
Good deal. Running the Ram setup still or OE replacement stuff?
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Old Jun 3, 2024 | 09:25 AM
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Ram setup. It is crazy how much quieter the pilot bearing is than the pilot bushing with clutch pedal not pushed in. Not that it bothered me, but still noteworthy.

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Old Jun 3, 2024 | 09:26 AM
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edit, cross posted.

good to hear.

yep glad u r up and running. would appreciate knowing what the solution was and final installed setup was. thnx

Last edited by VikingTrad3r; Jun 3, 2024 at 09:31 AM.
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