Heaviest 5er without a dually?

You've heard a lot of opinions on weights, capacities and payload. These did not address your issue of driving in city with a full size pickup truck. With practice, you would be surprised where you can park a long pickup once you understand the dynamics and practice parking. Even what a lot of experienced RV-ers don't understand is that it is much easier to BACK a long wheelbase pickup into a stall parking than to pull in to it. It is amazing watching long wheelbase pickup drivers trying to pull in to a space, backing in and out numerous times and never getting the vehicle straight. I went from a CC shortbox truck to a full CC dually. Yes, the dually is harder to park, but it is the wide fenders, not the length that causes the concern in getting in and getting out. I work at a large urban hospital and I have had to find parking spaces that will work and those (most) that won't. My concern is greater getting out because you don't know who or what is going to park around you before leaving. So, I look for spaces where I can pull straight out into the exit lane. Backup cameras are required for backing in to most spaces. Buy an aftermarket one if your vehicle doesn't have one.