I'm having a warranty fail with a well known torsion axle brand. Bought a #9 and installed it on a 5x10 teardrop (total weight approx 1500 lbs). Drove 8000 miles (6 months) and had totally bald tires. Wear pattern indicated toe-out condition. Measuring showed 1/2 inch total toe-out (for 14 inch tires, equiv to 1 degree.) These were interstate miles and had no incidents that would cause damage. My assumption was that the axle was shipped out-of-line. The manufacterer promptly and without complaint shipped me a new replacement. I was very greatful until I installed it and saw visible toe-in on the right side. I took it to a tire shop, replaced the destroyed tires and had them measure the allignment, which showed 0.25 inch total toe-in. I can find no spec for any vehicle that permits this much. The tire guy said this was excessive. After some back-and-forth communication with customer service the manufacterer said they thought there was no problem. and If I had any trouble with performance to contact them.
I wasn't happy paying $400.00 for a new set of tires ruined by an axle shipped bad. I won't be happy paying to replace short lived tires ruined by a replacement axle shipped bad whether or not they ship me a fresh one when I complain about "performance".
I would like to know if other users feel they may be experiencing abnormal tire wear due to torsion axles that may have been shipped out of alingnment. I know I received one and suspect I got 2 in a row.
An axle's main job is to ensure the tires both point in the same direction.