Yes you can just take it to a dealer and you need to just tell them you want that particular TSB done because your tranny is hunting for 2nd in low rpms.
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2006 2500 Quad Cab 4x4 auto - 3.73s, Smarty TNT, Edge EZ, AFE Stg 2 CAI Amsoil filter and prefilter, Custom intake manifold, Heater Grid and silencer mia, Cat delete and free flow muffler with 6" tip, 315/70/17s
Waiting to go in: DDP 90s, Studs, and HD 110 Springs