Odd noise while stopping

I have a '98 Intrigue (100k miles, Vin K 3.8L) that makes a quieter version of the yatzee shaker sound when slowly braking to a stop while the tranny is downshifting from 2nd to 1st. It seems to be less pronounced with the traction control off, and seems not to be there at all when braking hard. Turning right or left during braking makes no difference. It has been doing this for the past few months. My first thoughts were that it was related to the ABS or traction system since the tranny is shifting well, but no lights have come on in the dash. Any thoughts would be greatly appreciated.

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Your post has been moved from Tips & Maintenance to the regular Grand Prix tech forum.

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