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

86 window regulator upgrade

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Old Jul 6, 2009 | 01:43 AM
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PMARTINEZ92126's Avatar
PMARTINEZ92126
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Default 86 window regulator upgrade

I just bought some used updated regulators for a 1986 vette. Im having a REALLY hard time trying to adjust the windows!!!!!!!!!!! I have new weatherstripping and new outer door seals for both doors. Ive loosened all bolts and nuts and Im having no luck. Its either hitting the pillars or its bowing out near the top. Ive been messing with it for the last three days. Im going to burn this car! Does anyone have any pointers?
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Old Jul 6, 2009 | 02:03 PM
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What is the problem? Is the door having a hard time shutting?
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Old Jul 6, 2009 | 02:08 PM
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At the Bottom, did you have to drill the holes for the bottom mount of the scissors type regulator??

If so, I'd start there. The New OEM ones from thepartsladi has a template that tells you just exactly where to drill.
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Old Jul 6, 2009 | 07:26 PM
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Originally Posted by PMARTINEZ92126
I just bought some used updated regulators for a 1986 vette. Im having a REALLY hard time trying to adjust the windows!!!!!!!!!!! I have new weatherstripping and new outer door seals for both doors. Ive loosened all bolts and nuts and Im having no luck. Its either hitting the pillars or its bowing out near the top. Ive been messing with it for the last three days. Im going to burn this car! Does anyone have any pointers?
There are two regulator types, the originals with the toothed belt that breaks, and a scissors type that are used on the newer C4s and is the only style serviced by GM now. Which ones are you installing?
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