Ticking noise from the rear end of my truck?

Hey guys, I went onto a chevy forum and posted this but NO ONE has replied to it and I searched here but I couldn't find someone that had the same problem as me.
I was driving around on a buddy's land with high grass. There a rather deep drop where my truck went into that messed up my allignment.
Thats not the only thing. Now when I press the accelerator a ticking noise comes from the back end. And every once in a while when i slow down a loud knock comes from the front, especially when i turn the wheel. It ticks faster the harder I press on it and goes away when I go up to 45 mph. Either that or I just can't hear it over my exhaust. What could this be? Someone told me it was my water pump? Im not too sure, thanks in advance guys.

I drive a 2004 chevy avalanche 2 wheel drive.

 

bump?
ANYONE?