I recommended you to check out the Camping World Store for the cupholder...
(check its website: www.campingworld. com  for your nearest store) It is just
$4.98 each in compare to ridiculous $35.00 each at my vw dealer. It cames in
either brown or black, has top adjustable jaws and looks very close in size
and original.... In my 88 weekender two front cupholders are mounted with two
screws and the other three cupholders were mounted with rivets (I drilled out
the rivets to remove my broken cupholders. I drilled holes in the new
cupholders to match with the existing holes and "pop"-rivets them.

Email me if you're interesting in their original cupholder location
dimensions....

James
88 weekender
anaheim, ca