did some digging and found a picture of a swingarm from bmi that was part of their inventory of recalled YD's, it had the witness marks from the bearings on the outside of the brackets. you may have bearings in it that are narrower than the originals or may have the bearing shells flipped possibly. The brake caliper mount posts dictate where your axle should sit in relation to the rotor, as does the engine sprocket mount. the bearings should be right up against the shoulders on the axle and limit the side to side thrust.
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