Also, another question I got about towing while I'm here just out of curiosity; my van came with the sunvisors that give a warning for trailer towing (not to go over 45mph in english and french-canadian) and the previous owner, keyword
said, had the rear springs upgraded who knows when for cargo hauling, but not for towing to the best of my memory. Does this matter in any case or is it just a thing Toyota threw in the vans as a caution? There were also sunvisors without the warning on them for the vans so I'm just curious...
Thanks in advance!