Any ideas how to loosen up the manual windows on my 93 2600i?
They are really hard to roll up or down.

 

Mine are very tight too .. haven't had a chance to check it out yet, but i assume I'll have to take the door panels off and adjust the linkage- could be bent. But then again, I don't know the inner workings of the door yet.

 

OK, this is from my VW bug:I've had to take off the door panels before and clean the big gears, like with brake cleaner or WD-40, then use stick lubricant (from Ace Hardware) to lube those gears, then put panel back on.