Is there anything I can use on window glass or seals to allow the windows to operate a little more smoothly?. Any insight would be great I have power and some times they require some human power to help them up

If they go down fine, I bet it's the spring has lost tension as it is critical for assisting the weight of the glass.

I don't know if there is any way of determining the tension #'s, but in my case both door glass were very slow and laboring going up, but very quick down.  

It's a bit of a risky process, but I just unhooked the spring and basically forced it backward which then stretched it into a different position.  Had to coil it about 3/4 - 1 turn to get it to to do that, but there's now more tension on it when re-connected.  The result is the glass is almost quicker up than down, but they work awesome now.

Also, (in my case) almost all the adjustments were loose and out of place causing some binding, I guess from vibration over the years.  Some of the bolts were even missing and laying at the bottom of the doors.  Point being, it took sevral hours of fine tuning all the adjustments and aligning all the track positions to get it just right therefore less strain on the motor etc.

1965CS wrote:

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I don't know if there is any way of determining the tension #'s, but in my case both door glass were very slow and laboring going up, but very quick down.  

It's a bit of a risky process, but I just unhooked the spring and basically forced it backward which then stretched it into a different position.  Had to coil it about 3/4 - 1 turn to get it to to do that, but there's now more tension on it when re-connected.  The result is the glass is almost quicker up than down, but they work awesome now.

Also, (in my case) almost all the adjustments were loose and out of place causing some binding, I guess from vibration over the years.  Some of the bolts were even missing and laying at the bottom of the doors.  Point being, it took sevral hours of fine tuning all the adjustments and aligning all the track positions to get it just right therefore less strain on the motor etc.

-- Edited by 1965CS on Tuesday 21st of May 2013 02:54:06 PM

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 Hey,

Wanna come do this on mine..both my rear quarter glass are a bit slow...