Gary68 said:e450? whats thats 2-21/2 ton? if so 500lbs is nothing,you could load it full of bricks and be o.k.
I really don't know, looking it up provides nothing but confusion. GVW is 14,000, rear GAVW is 9500, but without putting it on a non-existant scale those numbers don't mean much I think...
Good call on lid SW, they're so heavy that hold downs didn't even cross my mind...