I my opinion if the bolts have been tightened and loosened that many times they are stretched and should be replaced. Get new nuts, bolts and lock washers of the proper grade (most likely grade 8 check with hitch mfg.) and tighten them to the correct torque for that grade of bolt. They should not loosen. JM2¢, Hank
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Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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