I originally offered custom tempered glass for the G28 door windows. I had it made by a place in Ohio that was willing to sell me small quantities after the $1500 setup charge for the forms. I originally ordered 10 sets and sold them off quickly (back when everybody was building G28's). The place notified me a few years back that they would no longer be able to supply me with small orders (under 500 pieces), so if I needed more I had to order right away before the deadline. I offered to do a group buy to cut the cost down but hardly anybody wanted them (1 person). So now, they will no longer make the glass for me unless I order 500 pieces.
There is no way OEM Murcielago glass will fit a G28 door without modifications. OEM glass is almost 2" shorter in length than the G28 window opening, and about 1-1/2" taller. The problem lies with the mirror mount area on the G28 door. Its about 2" smaller than the OEM mirror mount area, which is why OEM mirrors don't fit the G28 door unless they too are modified to accept it.
Yes, you can put OEM glass in a G28 door but you have to modify the door by lengthening the mirror mount area (then use either OEM mirrors or modified G28 mirrors). Since OEM glass is taller than the window opening on a G28, it wont retract all the way down into the door. I have G28 glass in my door and when the window is down as far as it will go, it sticks up about 2" above the window sill. If you use OEM glass which is 2" taller than G28 glass, it will sit up about 4" above the sill when fully retracted into the door as far as it will go down.
And BTW, whoever is saying that Saturn door glass will fit the G28 is dead WRONG. The geometry of the Saturn glass has a forward raked front and rear edge going from the top to the bottom. The Murcielago (OEM or G28) has a near 90 degrees vertical front and rear edge. Unless you want to change the shape of your window opening to have a slanted front and rear edge there is no way to make it work.
Part of the reason I seldom come on these forums anymore is because of all the misinformation and bad advice I see being given to builders by people who have no clue what the facts are or have any experience in the area they are speaking about.
