Need help with suspension!

I made this hummer a while back and only now i’ve decided to make it move. There are so many suspension tutorials around now it’s hard to know which is best. If anyone has a link to a thread, tutorial or maybe a download of a suspenion they know and they think is the best, please post it here.

There may be a thread on the actual hummer soon if I can get a suspension on it.

Thank you

What Onemanclan said.