Before you decide on which bars to get make sure you get an accurate tounge weight. The listed weight has almost always been off from my experience and when I spoke to an engineer at Reese he wouldn't even give me an answer until I weighed my tounge weight. Well the factory called it at 1630 but when I weighed it on a scale it was 1950. I went with a 1700 lbs bar as that was the heavyist they had and it has been working fine for 7 years. I just recommend you weigh the tounge weight with propane in the tanks fist.