Second others, if it is that jammed then probably not fixable. Also agree that you should buy a new one that is "overkill" for the tongue weight of your trailer, especially if you use the jack to lift the rear of your tow vehicle to install your weight distribution bars.
When I replaced mine, I used the 3 screws from the old jack to hold it in place. I did however ADD 3 nuts to those screws to keep them from backing out.
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2015 Starcraft AR-ONE Maxx 21FB
2023 Chevrolet Suburban LT 1500
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