We tow a 16k Fiver loaded weight with a second ( double tow) 2.5 k trailer. Gross 26k with a SRW 3500 extrended cab long bed. diesel.
No issues of stability, overloading, braking.
If a SRW is rated to do the job with pin weight, why is DRW justified? Not.
More important to handling is wheelbase.. A longer trucks wheelbase is the stability, not the extra tires, the springs and axles are the same.
Get over the length and parking issues of a long bed. Save yourself the cost of slider hitches, have the room for cargo or an extra fuel tank. Our 80 gal in bed diesel tank extends range 900 mi. more.
