There most definitely is. If you have more than 100k concider at the very least having it checked for stretch. At 115k I did the following on my SEL: timing chain,tensioner,chain guides(very important!!!,do a search on guides),and the retainers for the cam oiler tubes. I plan on keeping my car for along time so I don't mind doing preventative maintainance. I'm sure more experienced owners could add to my recommendations.

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Tim Mabry
87 560 SEL
85 Chrysler Laser
72 IH
59 Rambler Rebel
57 DeSoto Sportsman
55 New Yorker
49 Dodge Turdmobile
47 DeSoto Suburban
40 Packard
39 Packard