Not same thing but my old balloon trailer had a torsion axle. The trailer was an 89. Had something in it all its life before I got it. When we got it the whole basket,envelope,inflator fan and all related stuff went in it and never came out unless we flew or used trailer for something else. Never seen anything wrong with axles at anytime. When I sold it it went to Walla Walla Washington and the guy said he never knew the trailer was back there the whole way home. I know it isn't the same as a car trailer but still same concept.

corey