I'm not sure if the 75 280 windows were similar enough to the 240's to help you but I'll give it a shot.
You haven't given a complete idea of what the problem is, so I'll have to take a couple blind stabs.
The chrome moulding that forms the outer part of the window frame is the exposed part of the channel that the window pane rides in. The lower portion of that moulding is bolted to the back edge of the door by the door latch mechanism. The window is always in this groove and this could be part of your problem.
The window actuator scissor has 3 rollers, two face away from the passenger compartment and enter separate tracks on the lower part of the window glass holder, the other roller faces towards the inside (you) and is what determines the angle of the window inside the opening. This track for the roller guide mounts horizontally about midway up the door.
The last component is the front sash, this is the guide in the front part of the door for the nylon guide attached to the front of the window pane.
If one of the window roller guides has fallen off its track, the easiest way to get it back into position is to raise the window to about the midway position, then with the door panel off, get your fingers in there and help the roller back into it's track. You might want to examine this track and the roller bearing since the guide forms a "C" around the roller and for it to slip out indicates that the guide or the roller may be broken, chipped. Yes it is possible for the roller to just roll out of the guide, but then that means that the window was not installed properly, or that the back part of the window has fallen out of the guide allowing the roller to move past it's maximum extension point.
Addressing specific items would make an already lengthy post even longer, so check these things out first. You should be able to figure out what to fix, post back if you sre still having problems.
You haven't given a complete idea of what the problem is, so I'll have to take a couple blind stabs.
The chrome moulding that forms the outer part of the window frame is the exposed part of the channel that the window pane rides in. The lower portion of that moulding is bolted to the back edge of the door by the door latch mechanism. The window is always in this groove and this could be part of your problem.
The window actuator scissor has 3 rollers, two face away from the passenger compartment and enter separate tracks on the lower part of the window glass holder, the other roller faces towards the inside (you) and is what determines the angle of the window inside the opening. This track for the roller guide mounts horizontally about midway up the door.
The last component is the front sash, this is the guide in the front part of the door for the nylon guide attached to the front of the window pane.
If one of the window roller guides has fallen off its track, the easiest way to get it back into position is to raise the window to about the midway position, then with the door panel off, get your fingers in there and help the roller back into it's track. You might want to examine this track and the roller bearing since the guide forms a "C" around the roller and for it to slip out indicates that the guide or the roller may be broken, chipped. Yes it is possible for the roller to just roll out of the guide, but then that means that the window was not installed properly, or that the back part of the window has fallen out of the guide allowing the roller to move past it's maximum extension point.
Addressing specific items would make an already lengthy post even longer, so check these things out first. You should be able to figure out what to fix, post back if you sre still having problems.
