2001 7.3 glow plug problem
 

I have a 2001 f350 7.3 I'm almost 100% positive I need new glow plugs, but do I need to buy new gaskets for the valve covers when I replace them too? What do I need to get, any advice would be greatly appreciated

Try replacing the relay first. Then if that doesn't work get motorcraft or beru glowplugs only. You don't need gaskets if your only replacing glowplugs