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

poor shift quality on 4 plus 3 tranny

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Old Jul 4, 2009 | 06:27 PM
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Default poor shift quality on 4 plus 3 tranny

I have a friend who has an '86 corvette conv. pace car with 15K on the odo. The reason he doesn't drive it is because the shift quality of the Doug Nash 4 plus 3 manual trans has always been horrible. I was wondering if anyone had similar experiences with this combo and if anyone had any suggestions on a simple fix? It's not a mechanical malfunction;this fellow is maniacal on vehicle cleanliness and maintenance and just installed a new master and slave cyl for the clutch.Any suggestions would be greatly appreciated. Thanks in advance.
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Old Jul 4, 2009 | 08:15 PM
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Originally Posted by kh400
I have a friend who has an '86 corvette conv. pace car with 15K on the odo. The reason he doesn't drive it is because the shift quality of the Doug Nash 4 plus 3 manual trans has always been horrible. I was wondering if anyone had similar experiences with this combo and if anyone had any suggestions on a simple fix? It's not a mechanical malfunction;this fellow is maniacal on vehicle cleanliness and maintenance and just installed a new master and slave cyl for the clutch.Any suggestions would be greatly appreciated. Thanks in advance.
What's wrong with the shifting?
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Old Jul 5, 2009 | 03:13 AM
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Originally Posted by 383vett
What's wrong with the shifting?

It is a old style external shift linkage setup; relatively long throw and notchy .Wll shift like any 60's muscle car; will never shift like a Toyota
At 15K nothing should be worn out
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