Hello all, I am trying to figure out what may be going on with my front end. When I drive over bumps, road defects and such, theres clunking in the front end. When going over speed bumps, unless going crawl speed, sounds like the suspension slams back down. I looked at the part numbers on the struts thats on the truck and its odd pn #20842281 which online search comes up with ac delco 580-433 Now when I run the rpo code (7F2) the part number comes up 580-434 of what's supposed to be on the truck. Could this possibly be why the suspension is acting funny? It's hard to believe my 02 tahoe takes bumps alot smoother with no sound over a 13 Avy LTZ. Any help is greatly appreciated