Try tightening up the center caps first and see if the rattle goes away. Its possible that you may have a bad suspension rubber bushing somewhere as they can dryrot from just the passage of time regardless of miles driven. Look for any rotted appearing bushings. May also try jacking each front wheel up and then jiggle them for any looseness.
SBC powered 1987 Regal with TES headers, ZZ4 intake, ZZ4 PROM chip, mini starter, THM2004R, 2500 stall converter, 2040 cam, CCC system, and 3.73 posi rear.
2008 ex NPS P71 Crown Victoria, cop motor, cop shocks, cop brakes, and Jmod.
Never argue with an idiot.
They will just drag you down to their level and beat you with experience.