1)The current F150HD has a "stronger / more rigid" frame than your old Dodge.
2) Your truck in fact weighs about 500lbs more than F150 Crew Cab
3) With a lower payload rating than MOST F150 HD's lol
4) 240 horsepower (stay out of the left lane!!)
5) Your Dodge has smaller diameter brakes front and rear
6) Lack of 4 channel ABS and proportioning.....
Those in glass trucks shouldn't throw stones.
But you made my point, the F150 specs out well, or your truck doesn't, take your pick!
And that 245hp chunk of iron under the hood is the cause of the weight disparity. I have driven both, and I can say without a doubt, that era of Dodge Ram is no more tough or capable than the current F150 EB that you detest so much.
And since you mentioned stability.... ABS, stability control, trailer sway control, bigger brakes, shorter stopping, better handling and better steering on the F150 are certainly no second to ANY older 3/4 ton truck.