Do not load it backwards unless you have a very long trailer like
@bucket and can get the weight over the rear tires. Tail heavy is extremly dangerous.
How long is your trailer? That would really be my only concern, if it's too short for those longbeds, you'll either be too far forward (increasing tongue weight) and/or the rear tires will be at the very back of the trailer, making it hard to tie down.
I towed my '85 shortbed 1/2 ton last year on an 18' car trailer borrowed from a coworker. You could load a longbed on it but the rears would be right at the back of the trailer. As it was, I was a touch too far forward for ideal tongue weight to keep the rear tires off the dovetail (doesn't help that these Dodge 1/2 tons have very soft rear springs, so it squats more than it should) but it towed just fine. I just kept it below 70.
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