Enclosed Trailer Questions

Lots of good info, thanks guys! For clarification, I have an old 3/4 ton duramax that I tow with.

One more question, has anyone had any issue with excess heat inside of Black vs White trailers? I love the look of black (or dark blue) trailers, just not sure if it would be substantially hotter inside compared to its white counterpart.
Yes black will be a lot hotter. These idiots on the road can't drive or see. I'm all for white or red gives you 1/2 a chance. On a general note, carry real flares people will just drive thru reflectors, flashing lights or orange cones but they"ll go in a ditch before running into a flare.