clunking/clicking noise
 

I've had this clunking/clicking noise for awhile now and i need suggestions what to inspect. It doesn't matter if i drive 5 miles an hour or 65 it still will make noise. It's not constant but will clunk every 3 to 10 seconds. The weird thing is if i hit the brakes the noise will go away. I can't pin point the location it seems like it's coming from under the truck on the drivers side. I've had all my u-joints replaced and checked the exhaust system. What would stop clunking when the brakes are applied? It's a 99 blazer six cylinder 4x4. Also 4wd works fine i've been using it the last couple of days, and it makes the same clunk while engaged in 4 wheel. Please post some suggestions i don't want to take the truck to a shop just yet.

thanks

RE: clunking/clicking noise
 

Could be ball joints