Diesel Lowering S****t Springs?

Hey Guys and Gals,
    Happy New Year! I am wondering how many of you have installed lowering
spring kit on your diesel... yourself or you had someone else installed...
either way.

    The reason I am asking is because some brand specifically said not for
diesel... and other doesn't say... and I am wondering... what is the big
deal? The diesel engine couldn't be that much heavier than the V8
engine...

    Otherwise, I don't know what the issue is. Thanks for all the
replies...

Tiger