One other weird thought. I once had a smaller tandem tag trailer that was always a miserable bitch to tow. It would be squirrelly and push the truck around way out of proportion to the size of the trailer. Never gave it real big thought, just figured it was geometry because we had the trailer built kind of short for the width. Towed it for many years, came time to replace the worn out torsion axles, and when installing the new ones and taking some measurements, it turned out the axles had been welded in at the factory slightly out of square with the trailer and with each other. Not enough to look odd to the Mark IV eyeball measuring tool all those years or to tow crooked behind the truck, but enough to see it on the tape measure. Welded in new squared up mounts and the trailer towed like a dream from then on. And it was a name brand cargo trailer. Go figure. Strange things happen out there.
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