I want to bottom out the front crossmember when at shows.
Remove the front axle when you get to the show!
I'll second that!
Can't see a way to do it any other way.
But back to the question, do you have a practical application or more logical reason to want to lower the truck?
I'm all for helping folks that can explain what they want to do or accomplish and have some logical reasoning, even if I don't agree with or like the results the thought process can be fun, and I'll probably learn something too.
But if all the reasoning you can come up with is you "want to bottom out the front crossmember when at shows" then I may be all out of ideas on that one...
Grigg