2003 Tahoe rear window regulator

[K9trainer1]

I have a 2003 Tahoe Z71, the rear left window regulator cable broke so I replaced the entire regulator with the Dorman 748-228 with motor.
After install, the glass tips toward the back of the track when the window is rolled down.
Is this normal? Should I have replaced the regulator with AC Delco instead of Dorman?
And tips to correctly install the glass into the regulator clamps?
It's like the window won't stay in its tracks.

 

[troxclair88]

Have you watched the glass move from inside the door (Without the interior panel on) and see what happens?

 

[reedal]

And tips to correctly install the glass into the regulator clamps?
It's like the window won't stay in its tracks.

Loosen the clamps, Sit window in clamps, tighten clamps. That's how it was for my front passenger window at least.

 

[K9trainer1]

Seem like the clamping part of the regulator that slides on the track up and down is loose on the track. (if that makes since)
If you have a Tahoe, can you please put down your rear window and see if the window will tilt from the forward part of the window frame towards the back of the window frame and report back?
I was wondering if the Dorman regulator was just junk or defective.

 

[jesse53]

I always spray WD-40 on the window tracks..sometimes that works.