how do i look up box vans?
Depends on your specifics used or new. I would try craigslist, and there is a website called govdeals.com that sell all types of vans
I assume you mean how do you look up box vans on this web site. Below the new car search form is a link for "Go to Car Finder," from there you can select "van" as a body style. The used car search form has that in the regular search form already.