a 1500 is real borderline if your pulling a 24' box or bigger...eventually it will kill the truck.. attempting it load levelers are a must have
a 16-20' would be better for a 1500 but not perfect
i pulled this 24 with the A on a f-150 and not only was the suspension to weak but the drivetrain would have eventually blown....
now with the 2500hd and duramax diesel w allison trans i can rip the trailer up mountains
no load levelers needed