When I had 3,000 mile I notice that my back was lower, but I though I was going crazy, but with the recent post about the X being another 4runner, I an thinking about the add a leaf.

Is it hard to install, should I take out a load leaf or install new longer u-bolts(which one is the load leaf), should I do an aligment because the X will be higher, should I do anything about the back being higher than the front.