I have an 81 vanagon.
Vanagon sliding door adjustment.
I have an 86 vanagon sliding door that has always had trouble closing staying closed.
Is it leaking at the back.
The placement in the door and the hinge is differnet than the one in the pictures.
Would love to have some advice.
To move the door more forward or backward there is one bolt behind the interior door panel that lets you adjust the fore aft position a bit.
Good thing i was repainting that cover anyway.
Easiest adjustment is the big bolt on the rear frame center area of door that the latch mates with when door is closed.
Currently it has a good flush alignment in the front but the rear sticks out around 15mm from the body panel.
Most minivans use a similar system.
After that door removal itself is pretty easy with a helper.
Once the rollers on.
Those would 2 different adjustments.
Are the gaps in front and back with the door closed about the same width.
The hardest part of the whole process was getting the sliding door track cover off.
Next open the door and support it working in my carport i used some tires when i work on the sliding door i use my floor jack under the sill this also allows for adjustment of the door for final assembly.
I had to pound and pound and pound on the thing with a block mallet to the point i thought i was surely going to bend stuff.
To fix your van door and make it open smoothly get some spray oil like tri flow and spray oil on all the rollers top middle and bottom.
A picture woudl be helpful.
All sliding doors 85 and up use the same rear mechanism.