Hello Badger, the joints are replaceable,I am sending you to a source for them on line. I see no reason that you shouldn't be able to purchase them locally. If you are having trouble getting them you can order from www.partstrain.com. I hope this info will help you,thanks for using Just Answer,Jerry.
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I will give an honest answer to the best of my knowledge. If my answer helps, please accept,if it saves you some money a bonus is appreciated.Thanks for using Just Answer, Jerry