Steahly is the one. But for the cost of only $100, I would stay away from used because the weights are fine-threaded to mate to the center of the stock flywheel, and those threads are soft. If the '98 200 has spent anytime underwater, the flywheel housing most likely has had moisture trapped inside. That means the inner threads are probably corroded (and pitted) which will make the easy "spin-on installation" a real mess. Having fresh threads on a new weight, IMO is worth the few extra $$$ than getting a used one with chewed-up threads
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1999 380SX