Worn hitch receiver/shank
After 22K miles with 1000-1200# tongue weight, and maybe the same number of miles with only 650# tongue weight, things are getting pretty loose at the hitch receiver. The welds on the F150 MaxTow h...
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Just a note, you can install most of the clamps so they either pull the shank up in the receiver or down in the receiver. For WDH you usually want it pulling up. For non WDH pulling down works better. Depends on your setup but if you install it wrong it probably won't take long for it to loosen.
