ping pong in the front end?

[91'explorer 2wd]

damn this ttb. i was at the beach and front end makes a pong noise when i go over little humps goin about 15-20 mph. mind u in 2wd. what can this be. the 4x4 works just fine. should i worry about this or do all explorers do this? looked under and everything looks in place 2 me. thanks alot

 

[Doug]

It could be any number of things, balljoints, sway bar bushingsor radius arm bushings to name a few. Do a search you should come up with alot of info.