Help! 1977 Buick Estate Wagon tailgate window

Prosc0pes

New member
Jan 18, 2021
1
1
Does anyone know of a good way to go about changing the tailgate window motor in this car? I have the 1977 shop manual and it doesn’t say anything that I can find about it. I wanna do it right so I don’t have to do it again.
 

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Shortfuse

Member
May 15, 2020
82
18
Replacing these just takes time. The rear door panel needs to be removed. Then you should notice a large scissor like mechanism, it is very important that these be locked together during the service procedure as they are under a lot of spring tension and are capable of severly injuring you if you do not take the time to immobilise them before removing the motor. Take a drill and drill a hole through the arms near where they intersect and pivot so that you can insert a bolt and nut to keep them from rotating when you remove the motor. Otherwise they are cabable of removing fingers. Once you have then take the motor off of the regulator and install the new one. Then remove the bolt and nut you installed , reassemble and test.
 

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