Quick question regarding this. I think someone has already done this as my front glass vents but not the rear. The front glass also fully opens just fine however was missing the seal that goes between the 2 panes of glass.

I bought the seal and fitted however the gap between the two panes of glass is very tight and when I tried opening the front glass panel fully it works although seems tight and when venting it went up but every time it tried to go down the gap must be too small/tight so it senses a jam and goes back up.

The only way to get it down was to take the seal off and then it worked.

Looking at the rear glass it doesn't seem hard up against the rear of the opening and looks like it has a very small gap at the rear of the small glass panel, enough that the gap between the panels isn't right and causing issues.

Is there any way to move the rear glass panel further back so it's properly seated? I've tried moving it by hand but it's not moving and I don't want to force it.

Help appreciated.
Cheers!