On a landcruiser, a 4" lift and spring over is waaaaaaaay to tall. It will be super tippy.
I agree, anything over a stock SOA is getting pretty tall for 37's
Oh, I forgot to mention, there is NO WAY I'd want to be any taller...
x3 on all that..I just did an SOA on a 70 on 35s with i think 2" conferrs and shackles and DAMN is it tall!it helps if you do a shackle reversal/move the front hanger forward anyhow.