The 106's will give you about 4 inches of lift on the rear. I can't tell you about driveability because I did everything all at once. Front lift, rear springs. The bilsteins from a rav4 will fit. I don't think there's any modifications necessary, just a tight fit over the bolts that hold them on.

So regular Rav4 shocks work without any extra parts? I saw on upyourkia.com and on another post that using rav4 shocks required some adapter of some kind?