You can probably get away with short trips near home for awhile. If you have to make a quick stop or evasive manuever some time you could have some serious safety issues.
This issue seems to be very common these days. People seem to like larger trailers and small trucks. Of course it is always best to update the truck before you go trailer shopping. The truck gets used all the time. Trailers sit around a lot. I bought a one ton diesel and never looked back. I am still driving it after 17 years and it is the best vehicle I have ever had.