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2015 Ram 1500 Big HornI recently had similar issues. Mine predominately occurred with slight steering left and right at low speeds or idled. Brought it in and likely upper/lower control arm and ball joint issues. Seals for the ball joints come from factory sealed and packed with grease, once the seal breaks they begin to degrade cause the grease is no longer kept in. It could also be worn/dry rotted bushings, I found a lot of those. I would bring it in for an inspection to check suspension/steering.
Typical, OP is new, makes a post, has not been back since. Did no diagnostics of his own before posting question. Yes please, I really want to help.