I hope someone can share some helpful advice because I don't know where to start.

My '99 ironman has almost 70k and I replaced the shocks with rancho 9000 series about four months ago. Shortly there after I started hearing a thunk sound when going over harsher bumps from the front passenger side. There is no problem when turning (unless I hit a bump), so I'm not so inclined that it is related to CV joints.

Any similar experiences, ideas, or recommendations? I'm looking for some advice before I dive into changing CV joints, I haven't had the pleasure of changing CV joints yet.