so i took a chance and bought this wheel a couple years ago. 87 k5 wheel 18". been in my garage since purchase due to pure laziness, anyways i checked the fitment yesterday only to find that the hub is around 19/32" wider than the 88-96 hubs. i tossed around the idea of machining new spacers but after thorough measurements and checks, it just won't work. the spacing and offsets for disc and sprocket are all wrong. i decided to post this info in case anyone was considering doing the same thing.
MADDOGGY