73-87 Chevy _ GMC Trucks > Power Windows & Door Locks

1975 Power Window Conversion Woes!!

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jason.go:
The first pic shows the roller size difference between a pre-77 and a post 77. The 2nd and third picks shows someone's solution to not install the larger post 77 rollers. Unfortunately this guys solution rubs the motor cage aginst the regulator gear as seen in pic 3 and 4.

I've got to replace the modified rubbing regulator with one that doesn't rub..

my choices are..

1. Replace the larger post 77 rollers on the new regulator with the smaller pre77 rollers.
2. Replace my 1975 window sash and lower roller track with the larger post 77 style.

Right now I'm leaning toward option#2 but am concerned that my thicker 1975 glass might be too tight for a post 77 sash.

The existing small roller hack seems to be handing electric motors torque so option #1 is viable if I can find the smaller replacement rollers. Does anyone know if the pre73 rollers work on a 1975 sash?

Sent from my SM-N960U using Tapatalk

jeremy.farlow:
I don’t know the nuance of changes during the model run, but I just swapped from power windows to manual. I was pleasantly surprised to find that the door stampings were identical for auto or manual doors. I realize this isn’t of great help to you, but I do have working motor and regulator setups that came out of a 91 suburban. You can have anything I have for shipping cost.



Jeremy

VileZambonie:
If they are 75 doors, they aren't made for power windows. Your best bet is an aftermarket power window conversion.

roundhouse:
Either that or swap the entire door

VileZambonie:
You can do that, but if you are using the early style door panels still, there will be a lot of bodywork to fill in all of the holes and recessed areas and then of course the fitment of the door which is an entirely new problem to contend with.

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