I just put crossmembers on my 2015 323LKTS. The hangers for the leaf springs had started to bend inward, and one was even tearing apart from the I beam. The hangers had to be cut off and replaced, and the shop strongly advised putting the cross members at the 3 hangers to prevent this from occurring again. It does add extra weight, but in my opinion well worth the cost and lbs. The original equipment used by most manufacturers is the lightest and least expensive they can get away with. My new hangers are thicker, and the cross members mean I won't have a repeat of this problem ever again on this fifth wheel.
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2015 Eagle 323 LKTS
2018 GMC Duramax 3500
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