1992 GMC jimmy problems, horrific noise from below.?

[Matt]

I've been having some problems with my 92 jimmy s15, i have a horrible metallic rattling everytime i turn or hit a decent sized bump in the road. I've checked under it, had to tighten the exhaust, and the fuel lines. that didn't seem to help the problem. the odd thing is that the sound doesn't always come from the same place under the car. i checked the shocks, the front drivers side shock seems to be leaking, but the others seem okay. Any ideas what may be causeing this noise? oh, and also i recently replaced all the body mounts