i usually find the lube they give you with their urethane isn't enogh i have a big jar of synthetic grease sittin' at home. i usually apply generous amounts of lube to metal pieces. i wipe off any excess crap. no sqeaks yet.
it look like you removed your springs and shocks to do the install. you don't need to remove those to do the install...
just addin' stuff to get this thread back to the top