Currently it has a good flush alignment in the front but the rear sticks out around 15mm from the body panel.
Vanagon sliding door adjustment.
Those would 2 different adjustments.
Good thing i was repainting that cover anyway.
I have an 86 vanagon sliding door that has always had trouble closing staying closed.
The front and rear gaps are about the same 7 5 7 8mm.
Easiest adjustment is the big bolt on the rear frame center area of door that the latch mates with when door is closed.
A picture woudl be helpful.
Are the gaps in front and back with the door closed about the same width.
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.
Most minivans use a similar system.
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.
The placement in the door and the hinge is differnet than the one in the pictures.
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.
Front of sliding door fits flush with front.
I have an 81 vanagon.
After that door removal itself is pretty easy with a helper.
The hardest part of the whole process was getting the sliding door track cover off.
Once the rollers on.
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.