It has been discussed many times. The 80-84 sliding door has the same
size window as all driver sides. The 85-91 has a slightly smaller
sliding door window. Only the window opening in the sliding door
changed, not any other window openings.

The entire door is different in various ways, 80-84 is one type, 85-91
is another, not interchangeable.

Mark

Zolly wrote:
> Interesting.
>
> I did not know this before.  Just found out that the sliding door window is not the same long as the driver side sliding middle window.  There is at least an inch difference.
> This is an '87 model.
> I don't remember this to have been discussed ever.  But I can be wrong.
> I did know, that earlier vans have different length of sliding windows to the newer ones though.  But I never thought the sizes may differ within one vehicle.
> Apparently GoWesty did not know it either.  But Van-Cafe did and have the right size of seals too.
> Zoltan
>