Whatever truck you buy, check and/or replace the brake lines. I infrequently tow big Buicks, 4400 lbs, with an open trailer, behind an ‘04 3/4 ton Sierra that I bought new. At about year ten or 100k miles, I was loading up to go to a show and the brakes went to the floor, fortunately in my back yard. I found out that in the early 2000’s ALL the mfrs. had crappy brake lines. Didn’t matter if it was Ford, GM, Toyota or whatever. The steel at the time, wasn’t holding up to the salt and brine they put on the roads these days, and they rust and rot and you are in for a surprise when you least expect it. And I live in a relatively mild area with very little snow.
So we got a brake kit to replace all the lines. (Now why would you think they make kits? Must be pretty bad) There were even class action suits , but do you think the little guy won?
As someone said previously in this forum, “Its not how much you can pull, but how much you can stop.” Be safe.
Whoops, I guess I am repeating myself. I just ran across this thread again and didn’t realize I harped on the brake lines but that was a year ago. But anyway, I am leaving my comments in, because I think it’s really important that we all have good brakes.