Believe you do remove. Use the two threaded holes in the flywheel to pull - DO NOT use a puller that grabs the outer lips of the pulley edges.
Also a good rap with a hammer on the end of the puller while under tension usually helps.
you can search my old posts about removing a balancer on a d6 9U. ( others too, I'm sure)
you can make a puller with a bottle Jack and some long bolts
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