When to replace shocks on 1998 ford E150 van?

Shocks on a 1998 Ford E150 van should be replaced if you notice signs such as excessive bouncing, a rough ride, or fluid leaks around the shocks. Additionally, if the van sways significantly during turns or experiences nose diving during braking, it's time to consider replacement. Generally, it's recommended to inspect the shocks every 50,000 miles or if any of these symptoms arise. Regular maintenance checks can help ensure optimal performance and safety.