I put the Rancho AAL's on one of my 4Runners and it rode fine, then I got the AAL's from JC Whitney(I forget which brand) for a different 4Runner and it rode a little stiff but not so bad that it bothered me. And that was with the hardtop removed all summer. Both will give you about 1.5-2" of lift. I had my local garage install both sets so I can't comment on how hard it was.