Loud popping noise

I have a 2002 Chevy Blazer, 130,000 miles with a 4.3L engine. I'm getting an extremely loud popping noise coming from under the drivers side front. Most of the time it happens when I drive over a bump or I'm turning right on the highway. It even does it when I pull into my garage when it goes over the slight bump. Sounds like it is in the suspension or steering. Any help would be appreciated.