11 years of fulltime (200K miles) travel with a Trailer Saver TS3 hitch towing a 34 ft, 18.5K 5th wheel. Great hitch, no problems. The air bags developed fine surface cracks after about 7 years, so I bought a backup air bag, but never needed it. The bags naturally lose air over a week or so, so check it often. Keep the hinge bar greased with the zerk fittings on the top of the bar. I dismantled the hinge bar every 3-4 years to clean out dried grease, then re-installed. It's a pretty easy maintenance job.
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